From 7f8069085b9bc1f9a5f90e5f3946a9a1e5bf1271 Mon Sep 17 00:00:00 2001
From: Trivikram Kamat <16024985+trivikr@users.noreply.github.com>
Date: Thu, 20 Aug 2020 13:08:05 -0700
Subject: [PATCH] chore(deps-dev): bump typescript to ~4.0.2 (#1456)

---
 clients/client-accessanalyzer/package.json                | 2 +-
 clients/client-acm-pca/package.json                       | 2 +-
 clients/client-acm/package.json                           | 2 +-
 clients/client-alexa-for-business/package.json            | 2 +-
 clients/client-amplify/package.json                       | 2 +-
 clients/client-api-gateway/package.json                   | 2 +-
 clients/client-apigatewaymanagementapi/package.json       | 2 +-
 clients/client-apigatewayv2/package.json                  | 2 +-
 clients/client-app-mesh/package.json                      | 2 +-
 clients/client-appconfig/package.json                     | 2 +-
 clients/client-application-auto-scaling/package.json      | 2 +-
 clients/client-application-discovery-service/package.json | 2 +-
 clients/client-application-insights/package.json          | 2 +-
 clients/client-appstream/package.json                     | 2 +-
 clients/client-appsync/package.json                       | 2 +-
 clients/client-athena/package.json                        | 2 +-
 clients/client-auto-scaling-plans/package.json            | 2 +-
 clients/client-auto-scaling/package.json                  | 2 +-
 clients/client-backup/package.json                        | 2 +-
 clients/client-batch/package.json                         | 2 +-
 clients/client-budgets/package.json                       | 2 +-
 clients/client-chime/package.json                         | 2 +-
 clients/client-cloud9/package.json                        | 2 +-
 clients/client-clouddirectory/package.json                | 2 +-
 clients/client-cloudformation/package.json                | 2 +-
 clients/client-cloudfront/package.json                    | 2 +-
 clients/client-cloudhsm-v2/package.json                   | 2 +-
 clients/client-cloudhsm/package.json                      | 2 +-
 clients/client-cloudsearch-domain/package.json            | 2 +-
 clients/client-cloudsearch/package.json                   | 2 +-
 clients/client-cloudtrail/package.json                    | 2 +-
 clients/client-cloudwatch-events/package.json             | 2 +-
 clients/client-cloudwatch-logs/package.json               | 2 +-
 clients/client-cloudwatch/package.json                    | 2 +-
 clients/client-codebuild/package.json                     | 2 +-
 clients/client-codecommit/package.json                    | 2 +-
 clients/client-codedeploy/package.json                    | 2 +-
 clients/client-codeguru-reviewer/package.json             | 2 +-
 clients/client-codeguruprofiler/package.json              | 2 +-
 clients/client-codepipeline/package.json                  | 2 +-
 clients/client-codestar-connections/package.json          | 2 +-
 clients/client-codestar-notifications/package.json        | 2 +-
 clients/client-codestar/package.json                      | 2 +-
 clients/client-cognito-identity-provider/package.json     | 2 +-
 clients/client-cognito-identity/package.json              | 2 +-
 clients/client-cognito-sync/package.json                  | 2 +-
 clients/client-comprehend/package.json                    | 2 +-
 clients/client-comprehendmedical/package.json             | 2 +-
 clients/client-compute-optimizer/package.json             | 2 +-
 clients/client-config-service/package.json                | 2 +-
 clients/client-connect/package.json                       | 2 +-
 clients/client-connectparticipant/package.json            | 2 +-
 clients/client-cost-and-usage-report-service/package.json | 2 +-
 clients/client-cost-explorer/package.json                 | 2 +-
 clients/client-data-pipeline/package.json                 | 2 +-
 clients/client-database-migration-service/package.json    | 2 +-
 clients/client-dataexchange/package.json                  | 2 +-
 clients/client-datasync/package.json                      | 2 +-
 clients/client-dax/package.json                           | 2 +-
 clients/client-detective/package.json                     | 2 +-
 clients/client-device-farm/package.json                   | 2 +-
 clients/client-direct-connect/package.json                | 2 +-
 clients/client-directory-service/package.json             | 2 +-
 clients/client-dlm/package.json                           | 2 +-
 clients/client-docdb/package.json                         | 2 +-
 clients/client-dynamodb-streams/package.json              | 2 +-
 clients/client-dynamodb/package.json                      | 2 +-
 clients/client-ebs/package.json                           | 2 +-
 clients/client-ec2-instance-connect/package.json          | 2 +-
 clients/client-ec2/package.json                           | 2 +-
 clients/client-ecr/package.json                           | 2 +-
 clients/client-ecs/package.json                           | 2 +-
 clients/client-efs/package.json                           | 2 +-
 clients/client-eks/package.json                           | 2 +-
 clients/client-elastic-beanstalk/package.json             | 2 +-
 clients/client-elastic-inference/package.json             | 2 +-
 clients/client-elastic-load-balancing-v2/package.json     | 2 +-
 clients/client-elastic-load-balancing/package.json        | 2 +-
 clients/client-elastic-transcoder/package.json            | 2 +-
 clients/client-elasticache/package.json                   | 2 +-
 clients/client-elasticsearch-service/package.json         | 2 +-
 clients/client-emr/package.json                           | 2 +-
 clients/client-eventbridge/package.json                   | 2 +-
 clients/client-firehose/package.json                      | 2 +-
 clients/client-fms/package.json                           | 2 +-
 clients/client-forecast/package.json                      | 2 +-
 clients/client-forecastquery/package.json                 | 2 +-
 clients/client-frauddetector/package.json                 | 2 +-
 clients/client-fsx/package.json                           | 2 +-
 clients/client-gamelift/package.json                      | 2 +-
 clients/client-glacier/package.json                       | 2 +-
 clients/client-global-accelerator/package.json            | 2 +-
 clients/client-glue/package.json                          | 2 +-
 clients/client-greengrass/package.json                    | 2 +-
 clients/client-groundstation/package.json                 | 2 +-
 clients/client-guardduty/package.json                     | 2 +-
 clients/client-health/package.json                        | 2 +-
 clients/client-iam/package.json                           | 2 +-
 clients/client-imagebuilder/package.json                  | 2 +-
 clients/client-inspector/package.json                     | 2 +-
 clients/client-iot-1click-devices-service/package.json    | 2 +-
 clients/client-iot-1click-projects/package.json           | 2 +-
 clients/client-iot-data-plane/package.json                | 2 +-
 clients/client-iot-events-data/package.json               | 2 +-
 clients/client-iot-events/package.json                    | 2 +-
 clients/client-iot-jobs-data-plane/package.json           | 2 +-
 clients/client-iot/package.json                           | 2 +-
 clients/client-iotanalytics/package.json                  | 2 +-
 clients/client-iotsecuretunneling/package.json            | 2 +-
 clients/client-iotthingsgraph/package.json                | 2 +-
 clients/client-kafka/package.json                         | 2 +-
 clients/client-kendra/package.json                        | 2 +-
 clients/client-kinesis-analytics-v2/package.json          | 2 +-
 clients/client-kinesis-analytics/package.json             | 2 +-
 clients/client-kinesis-video-archived-media/package.json  | 2 +-
 clients/client-kinesis-video-media/package.json           | 2 +-
 clients/client-kinesis-video-signaling/package.json       | 2 +-
 clients/client-kinesis-video/package.json                 | 2 +-
 clients/client-kinesis/package.json                       | 2 +-
 clients/client-kms/package.json                           | 2 +-
 clients/client-lakeformation/package.json                 | 2 +-
 clients/client-lambda/package.json                        | 2 +-
 clients/client-lex-model-building-service/package.json    | 2 +-
 clients/client-lex-runtime-service/package.json           | 2 +-
 clients/client-license-manager/package.json               | 2 +-
 clients/client-lightsail/package.json                     | 2 +-
 clients/client-machine-learning/package.json              | 2 +-
 clients/client-macie/package.json                         | 2 +-
 clients/client-managedblockchain/package.json             | 2 +-
 clients/client-marketplace-catalog/package.json           | 2 +-
 .../client-marketplace-commerce-analytics/package.json    | 2 +-
 .../client-marketplace-entitlement-service/package.json   | 2 +-
 clients/client-marketplace-metering/package.json          | 2 +-
 clients/client-mediaconnect/package.json                  | 2 +-
 clients/client-mediaconvert/package.json                  | 2 +-
 clients/client-medialive/package.json                     | 2 +-
 clients/client-mediapackage-vod/package.json              | 2 +-
 clients/client-mediapackage/package.json                  | 2 +-
 clients/client-mediastore-data/package.json               | 2 +-
 clients/client-mediastore/package.json                    | 2 +-
 clients/client-mediatailor/package.json                   | 2 +-
 clients/client-migration-hub/package.json                 | 2 +-
 clients/client-migrationhub-config/package.json           | 2 +-
 clients/client-mobile/package.json                        | 2 +-
 clients/client-mq/package.json                            | 2 +-
 clients/client-mturk/package.json                         | 2 +-
 clients/client-neptune/package.json                       | 2 +-
 clients/client-networkmanager/package.json                | 2 +-
 clients/client-opsworks/package.json                      | 2 +-
 clients/client-opsworkscm/package.json                    | 2 +-
 clients/client-organizations/package.json                 | 2 +-
 clients/client-outposts/package.json                      | 2 +-
 clients/client-personalize-events/package.json            | 2 +-
 clients/client-personalize-runtime/package.json           | 2 +-
 clients/client-personalize/package.json                   | 2 +-
 clients/client-pi/package.json                            | 2 +-
 clients/client-pinpoint-email/package.json                | 2 +-
 clients/client-pinpoint-sms-voice/package.json            | 2 +-
 clients/client-pinpoint/package.json                      | 2 +-
 clients/client-polly/package.json                         | 2 +-
 clients/client-pricing/package.json                       | 2 +-
 clients/client-qldb-session/package.json                  | 2 +-
 clients/client-qldb/package.json                          | 2 +-
 clients/client-quicksight/package.json                    | 2 +-
 clients/client-ram/package.json                           | 2 +-
 clients/client-rds-data/package.json                      | 2 +-
 clients/client-rds/package.json                           | 2 +-
 clients/client-redshift/package.json                      | 2 +-
 clients/client-rekognition/package.json                   | 2 +-
 clients/client-resource-groups-tagging-api/package.json   | 2 +-
 clients/client-resource-groups/package.json               | 2 +-
 clients/client-robomaker/package.json                     | 2 +-
 clients/client-route-53-domains/package.json              | 2 +-
 clients/client-route-53/package.json                      | 2 +-
 clients/client-route53resolver/package.json               | 2 +-
 clients/client-s3-control/package.json                    | 2 +-
 clients/client-s3/package.json                            | 2 +-
 clients/client-sagemaker-a2i-runtime/package.json         | 2 +-
 clients/client-sagemaker-runtime/package.json             | 2 +-
 clients/client-sagemaker/package.json                     | 2 +-
 clients/client-savingsplans/package.json                  | 2 +-
 clients/client-schemas/package.json                       | 2 +-
 clients/client-secrets-manager/package.json               | 2 +-
 clients/client-securityhub/package.json                   | 2 +-
 .../client-serverlessapplicationrepository/package.json   | 2 +-
 clients/client-service-catalog/package.json               | 2 +-
 clients/client-service-quotas/package.json                | 2 +-
 clients/client-servicediscovery/package.json              | 2 +-
 clients/client-ses/package.json                           | 2 +-
 clients/client-sesv2/package.json                         | 2 +-
 clients/client-sfn/package.json                           | 2 +-
 clients/client-shield/package.json                        | 2 +-
 clients/client-signer/package.json                        | 2 +-
 clients/client-sms/package.json                           | 2 +-
 clients/client-snowball/package.json                      | 2 +-
 clients/client-sns/package.json                           | 2 +-
 clients/client-sqs/package.json                           | 2 +-
 clients/client-ssm/package.json                           | 2 +-
 clients/client-sso-oidc/package.json                      | 2 +-
 clients/client-sso/package.json                           | 2 +-
 clients/client-storage-gateway/package.json               | 2 +-
 clients/client-sts/package.json                           | 2 +-
 clients/client-support/package.json                       | 2 +-
 clients/client-swf/package.json                           | 2 +-
 clients/client-textract/package.json                      | 2 +-
 clients/client-transcribe-streaming/package.json          | 2 +-
 clients/client-transcribe/package.json                    | 2 +-
 clients/client-transfer/package.json                      | 2 +-
 clients/client-translate/package.json                     | 2 +-
 clients/client-waf-regional/package.json                  | 2 +-
 clients/client-waf/package.json                           | 2 +-
 clients/client-wafv2/package.json                         | 2 +-
 clients/client-workdocs/package.json                      | 2 +-
 clients/client-worklink/package.json                      | 2 +-
 clients/client-workmail/package.json                      | 2 +-
 clients/client-workmailmessageflow/package.json           | 2 +-
 clients/client-workspaces/package.json                    | 2 +-
 clients/client-xray/package.json                          | 2 +-
 package.json                                              | 4 ++--
 packages/abort-controller/package.json                    | 2 +-
 packages/body-checksum-browser/package.json               | 2 +-
 packages/body-checksum-node/package.json                  | 2 +-
 packages/chunked-blob-reader-native/package.json          | 2 +-
 packages/chunked-blob-reader/package.json                 | 2 +-
 packages/chunked-stream-reader-node/package.json          | 2 +-
 packages/client-documentation-generator/package.json      | 2 +-
 packages/config-resolver/package.json                     | 2 +-
 .../credential-provider-cognito-identity/package.json     | 2 +-
 packages/credential-provider-env/package.json             | 2 +-
 packages/credential-provider-imds/package.json            | 2 +-
 packages/credential-provider-ini/package.json             | 2 +-
 packages/credential-provider-node/package.json            | 2 +-
 packages/credential-provider-process/package.json         | 2 +-
 packages/eventstream-handler-node/package.json            | 2 +-
 packages/eventstream-marshaller/package.json              | 2 +-
 packages/eventstream-serde-browser/package.json           | 2 +-
 packages/eventstream-serde-config-resolver/package.json   | 2 +-
 packages/eventstream-serde-node/package.json              | 2 +-
 packages/eventstream-serde-universal/package.json         | 2 +-
 packages/fetch-http-handler/package.json                  | 2 +-
 packages/hash-blob-browser/package.json                   | 2 +-
 packages/hash-node/package.json                           | 2 +-
 packages/hash-stream-node/package.json                    | 2 +-
 packages/invalid-dependency/package.json                  | 2 +-
 packages/is-array-buffer/package.json                     | 2 +-
 packages/karma-credential-loader/package.json             | 2 +-
 packages/md5-js/package.json                              | 2 +-
 packages/middleware-apply-body-checksum/package.json      | 2 +-
 packages/middleware-bucket-endpoint/package.json          | 2 +-
 packages/middleware-content-length/package.json           | 2 +-
 packages/middleware-eventstream/package.json              | 2 +-
 packages/middleware-expect-continue/package.json          | 2 +-
 packages/middleware-header-default/package.json           | 2 +-
 packages/middleware-host-header/package.json              | 2 +-
 packages/middleware-location-constraint/package.json      | 2 +-
 packages/middleware-retry/package.json                    | 2 +-
 packages/middleware-sdk-api-gateway/package.json          | 2 +-
 packages/middleware-sdk-ec2/package.json                  | 2 +-
 packages/middleware-sdk-glacier/package.json              | 2 +-
 packages/middleware-sdk-machinelearning/package.json      | 2 +-
 packages/middleware-sdk-rds/package.json                  | 2 +-
 packages/middleware-sdk-route53/package.json              | 2 +-
 packages/middleware-sdk-s3-control/package.json           | 2 +-
 packages/middleware-sdk-s3/package.json                   | 2 +-
 packages/middleware-sdk-sqs/package.json                  | 2 +-
 packages/middleware-sdk-transcribe-streaming/package.json | 2 +-
 packages/middleware-serde/package.json                    | 2 +-
 packages/middleware-signing/package.json                  | 2 +-
 packages/middleware-ssec/package.json                     | 2 +-
 packages/middleware-stack/package.json                    | 2 +-
 packages/middleware-user-agent/package.json               | 2 +-
 packages/node-config-provider/package.json                | 2 +-
 packages/node-http-handler/package.json                   | 2 +-
 packages/property-provider/package.json                   | 2 +-
 packages/protocol-http/package.json                       | 2 +-
 packages/querystring-builder/package.json                 | 2 +-
 packages/querystring-parser/package.json                  | 2 +-
 packages/s3-request-presigner/package.json                | 2 +-
 packages/service-error-classification/package.json        | 2 +-
 packages/sha256-tree-hash/package.json                    | 2 +-
 packages/shared-ini-file-loader/package.json              | 2 +-
 packages/signature-v4/package.json                        | 2 +-
 packages/smithy-client/package.json                       | 2 +-
 packages/types/package.json                               | 2 +-
 packages/url-parser-browser/package.json                  | 2 +-
 packages/url-parser-node/package.json                     | 2 +-
 packages/util-arn-parser/package.json                     | 2 +-
 packages/util-base64-browser/package.json                 | 2 +-
 packages/util-base64-node/package.json                    | 2 +-
 packages/util-body-length-browser/package.json            | 2 +-
 packages/util-body-length-node/package.json               | 2 +-
 packages/util-buffer-from/package.json                    | 2 +-
 packages/util-buffer-from/src/index.spec.ts               | 2 ++
 packages/util-create-request/package.json                 | 2 +-
 packages/util-create-request/src/foo.fixture.ts           | 2 +-
 packages/util-format-url/package.json                     | 2 +-
 packages/util-hex-encoding/package.json                   | 2 +-
 packages/util-locate-window/package.json                  | 2 +-
 packages/util-uri-escape/package.json                     | 2 +-
 packages/util-user-agent-browser/package.json             | 2 +-
 packages/util-user-agent-node/package.json                | 2 +-
 packages/util-utf8-browser/package.json                   | 2 +-
 packages/util-utf8-node/package.json                      | 2 +-
 packages/xml-builder/package.json                         | 2 +-
 protocol_tests/aws-ec2/package.json                       | 2 +-
 protocol_tests/aws-json/package.json                      | 2 +-
 protocol_tests/aws-query/package.json                     | 2 +-
 protocol_tests/aws-restjson/package.json                  | 2 +-
 protocol_tests/aws-restxml/package.json                   | 2 +-
 yarn.lock                                                 | 8 ++++----
 310 files changed, 315 insertions(+), 313 deletions(-)

diff --git a/clients/client-accessanalyzer/package.json b/clients/client-accessanalyzer/package.json
index 5dad0f93690c..2428cc6c00ae 100644
--- a/clients/client-accessanalyzer/package.json
+++ b/clients/client-accessanalyzer/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-acm-pca/package.json b/clients/client-acm-pca/package.json
index a1fd57922973..ccb13f2acf51 100644
--- a/clients/client-acm-pca/package.json
+++ b/clients/client-acm-pca/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-acm/package.json b/clients/client-acm/package.json
index dd2e2983816c..6feea1fbc89e 100644
--- a/clients/client-acm/package.json
+++ b/clients/client-acm/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-alexa-for-business/package.json b/clients/client-alexa-for-business/package.json
index 1e159f995674..888dbcd4b68a 100644
--- a/clients/client-alexa-for-business/package.json
+++ b/clients/client-alexa-for-business/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-amplify/package.json b/clients/client-amplify/package.json
index 41654164fb10..bc9185773134 100644
--- a/clients/client-amplify/package.json
+++ b/clients/client-amplify/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-api-gateway/package.json b/clients/client-api-gateway/package.json
index eac48ed647ad..73f60cad1856 100644
--- a/clients/client-api-gateway/package.json
+++ b/clients/client-api-gateway/package.json
@@ -64,7 +64,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-apigatewaymanagementapi/package.json b/clients/client-apigatewaymanagementapi/package.json
index 3d8655dadc1c..e888effb8331 100644
--- a/clients/client-apigatewaymanagementapi/package.json
+++ b/clients/client-apigatewaymanagementapi/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-apigatewayv2/package.json b/clients/client-apigatewayv2/package.json
index 6d9b9e020f74..8321a237308f 100644
--- a/clients/client-apigatewayv2/package.json
+++ b/clients/client-apigatewayv2/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-app-mesh/package.json b/clients/client-app-mesh/package.json
index 3af4f7b8c7c4..b595682ff28a 100644
--- a/clients/client-app-mesh/package.json
+++ b/clients/client-app-mesh/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-appconfig/package.json b/clients/client-appconfig/package.json
index dc24c9c02acd..c1878a53e95d 100644
--- a/clients/client-appconfig/package.json
+++ b/clients/client-appconfig/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-application-auto-scaling/package.json b/clients/client-application-auto-scaling/package.json
index 363d94766c49..becebde728c2 100644
--- a/clients/client-application-auto-scaling/package.json
+++ b/clients/client-application-auto-scaling/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-application-discovery-service/package.json b/clients/client-application-discovery-service/package.json
index 2b0eb2ab7265..cf87a9fd6c60 100644
--- a/clients/client-application-discovery-service/package.json
+++ b/clients/client-application-discovery-service/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-application-insights/package.json b/clients/client-application-insights/package.json
index 8dac6ce74b37..419efd0848d8 100644
--- a/clients/client-application-insights/package.json
+++ b/clients/client-application-insights/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-appstream/package.json b/clients/client-appstream/package.json
index 5328780e4f9c..656c4acb7ff1 100644
--- a/clients/client-appstream/package.json
+++ b/clients/client-appstream/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-appsync/package.json b/clients/client-appsync/package.json
index ba037c3fc5b9..37c9dd3e0fb4 100644
--- a/clients/client-appsync/package.json
+++ b/clients/client-appsync/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-athena/package.json b/clients/client-athena/package.json
index 2422ad8c1969..311aebcb5d59 100644
--- a/clients/client-athena/package.json
+++ b/clients/client-athena/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-auto-scaling-plans/package.json b/clients/client-auto-scaling-plans/package.json
index 8d732b8b3a0f..8fc4664deab2 100644
--- a/clients/client-auto-scaling-plans/package.json
+++ b/clients/client-auto-scaling-plans/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-auto-scaling/package.json b/clients/client-auto-scaling/package.json
index ddb3fd209fd8..e3479c0074ef 100644
--- a/clients/client-auto-scaling/package.json
+++ b/clients/client-auto-scaling/package.json
@@ -64,7 +64,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-backup/package.json b/clients/client-backup/package.json
index f470f3a9a910..b869804e6b84 100644
--- a/clients/client-backup/package.json
+++ b/clients/client-backup/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-batch/package.json b/clients/client-batch/package.json
index 630faa2f1b24..ea860c18b356 100644
--- a/clients/client-batch/package.json
+++ b/clients/client-batch/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-budgets/package.json b/clients/client-budgets/package.json
index 6f6232d84399..b281f3c06ccf 100644
--- a/clients/client-budgets/package.json
+++ b/clients/client-budgets/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-chime/package.json b/clients/client-chime/package.json
index c62efd8af9fd..047cefdd04b7 100644
--- a/clients/client-chime/package.json
+++ b/clients/client-chime/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-cloud9/package.json b/clients/client-cloud9/package.json
index a689ce10e5ad..f7e615fa5c9d 100644
--- a/clients/client-cloud9/package.json
+++ b/clients/client-cloud9/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-clouddirectory/package.json b/clients/client-clouddirectory/package.json
index 2f251d84a067..b092996cb0da 100644
--- a/clients/client-clouddirectory/package.json
+++ b/clients/client-clouddirectory/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-cloudformation/package.json b/clients/client-cloudformation/package.json
index eaf68be4da0f..ae39003e22d8 100644
--- a/clients/client-cloudformation/package.json
+++ b/clients/client-cloudformation/package.json
@@ -66,7 +66,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-cloudfront/package.json b/clients/client-cloudfront/package.json
index ea9d05e2ca80..b7d72d5fa357 100644
--- a/clients/client-cloudfront/package.json
+++ b/clients/client-cloudfront/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-cloudhsm-v2/package.json b/clients/client-cloudhsm-v2/package.json
index b215ebe77494..45d596c4542d 100644
--- a/clients/client-cloudhsm-v2/package.json
+++ b/clients/client-cloudhsm-v2/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-cloudhsm/package.json b/clients/client-cloudhsm/package.json
index 9a8f5fdab82b..c4cbc0d854fa 100644
--- a/clients/client-cloudhsm/package.json
+++ b/clients/client-cloudhsm/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-cloudsearch-domain/package.json b/clients/client-cloudsearch-domain/package.json
index c0e05052c1bc..ab07158d3e9b 100644
--- a/clients/client-cloudsearch-domain/package.json
+++ b/clients/client-cloudsearch-domain/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-cloudsearch/package.json b/clients/client-cloudsearch/package.json
index a334e9516d7f..580c06f1c4a7 100644
--- a/clients/client-cloudsearch/package.json
+++ b/clients/client-cloudsearch/package.json
@@ -64,7 +64,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-cloudtrail/package.json b/clients/client-cloudtrail/package.json
index e83af4ef8834..a73767c70bee 100644
--- a/clients/client-cloudtrail/package.json
+++ b/clients/client-cloudtrail/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-cloudwatch-events/package.json b/clients/client-cloudwatch-events/package.json
index 867b22da8b17..7824bb842c88 100644
--- a/clients/client-cloudwatch-events/package.json
+++ b/clients/client-cloudwatch-events/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-cloudwatch-logs/package.json b/clients/client-cloudwatch-logs/package.json
index cde1841be334..287fb67aa461 100644
--- a/clients/client-cloudwatch-logs/package.json
+++ b/clients/client-cloudwatch-logs/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-cloudwatch/package.json b/clients/client-cloudwatch/package.json
index 6e07075c60a5..273a945d45cb 100644
--- a/clients/client-cloudwatch/package.json
+++ b/clients/client-cloudwatch/package.json
@@ -64,7 +64,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-codebuild/package.json b/clients/client-codebuild/package.json
index 1938a25dcd51..89b6a0db79dd 100644
--- a/clients/client-codebuild/package.json
+++ b/clients/client-codebuild/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-codecommit/package.json b/clients/client-codecommit/package.json
index 0228605f68bb..57637ed96d2d 100644
--- a/clients/client-codecommit/package.json
+++ b/clients/client-codecommit/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-codedeploy/package.json b/clients/client-codedeploy/package.json
index ed9acfe05bd2..369bab46af96 100644
--- a/clients/client-codedeploy/package.json
+++ b/clients/client-codedeploy/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-codeguru-reviewer/package.json b/clients/client-codeguru-reviewer/package.json
index 67bcb075ed63..f35837f67b87 100644
--- a/clients/client-codeguru-reviewer/package.json
+++ b/clients/client-codeguru-reviewer/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-codeguruprofiler/package.json b/clients/client-codeguruprofiler/package.json
index 6d5517e42aa0..9eacef7d83af 100644
--- a/clients/client-codeguruprofiler/package.json
+++ b/clients/client-codeguruprofiler/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-codepipeline/package.json b/clients/client-codepipeline/package.json
index 3a8d6b09f766..96c7827df822 100644
--- a/clients/client-codepipeline/package.json
+++ b/clients/client-codepipeline/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-codestar-connections/package.json b/clients/client-codestar-connections/package.json
index a74ea7e58483..1d7e8cad9f3d 100644
--- a/clients/client-codestar-connections/package.json
+++ b/clients/client-codestar-connections/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-codestar-notifications/package.json b/clients/client-codestar-notifications/package.json
index 33ee4497ebdc..dd554d2b3590 100644
--- a/clients/client-codestar-notifications/package.json
+++ b/clients/client-codestar-notifications/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-codestar/package.json b/clients/client-codestar/package.json
index eb4cf8d53f5b..6f23d7ba2053 100644
--- a/clients/client-codestar/package.json
+++ b/clients/client-codestar/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-cognito-identity-provider/package.json b/clients/client-cognito-identity-provider/package.json
index a62ab5327b2d..ad849a3dc1d0 100644
--- a/clients/client-cognito-identity-provider/package.json
+++ b/clients/client-cognito-identity-provider/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-cognito-identity/package.json b/clients/client-cognito-identity/package.json
index 727d6927e7a0..e15ed9a653f4 100644
--- a/clients/client-cognito-identity/package.json
+++ b/clients/client-cognito-identity/package.json
@@ -68,7 +68,7 @@
     "jest": "^25.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-cognito-sync/package.json b/clients/client-cognito-sync/package.json
index 9982c06b46d3..bc578804c452 100644
--- a/clients/client-cognito-sync/package.json
+++ b/clients/client-cognito-sync/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-comprehend/package.json b/clients/client-comprehend/package.json
index a0d19fdb4318..5230e5b0c4c9 100644
--- a/clients/client-comprehend/package.json
+++ b/clients/client-comprehend/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-comprehendmedical/package.json b/clients/client-comprehendmedical/package.json
index c3ed16c1f6c5..dbea366e7e61 100644
--- a/clients/client-comprehendmedical/package.json
+++ b/clients/client-comprehendmedical/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-compute-optimizer/package.json b/clients/client-compute-optimizer/package.json
index 4e50477c01df..f716636ee529 100644
--- a/clients/client-compute-optimizer/package.json
+++ b/clients/client-compute-optimizer/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-config-service/package.json b/clients/client-config-service/package.json
index 407451285cfb..783aeddc9df8 100644
--- a/clients/client-config-service/package.json
+++ b/clients/client-config-service/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-connect/package.json b/clients/client-connect/package.json
index 84bbda9e74b5..18b234ae774a 100644
--- a/clients/client-connect/package.json
+++ b/clients/client-connect/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-connectparticipant/package.json b/clients/client-connectparticipant/package.json
index dfd459130ef4..b3b6d8853bf5 100644
--- a/clients/client-connectparticipant/package.json
+++ b/clients/client-connectparticipant/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-cost-and-usage-report-service/package.json b/clients/client-cost-and-usage-report-service/package.json
index 0e7d3a711a68..8fdab3121155 100644
--- a/clients/client-cost-and-usage-report-service/package.json
+++ b/clients/client-cost-and-usage-report-service/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-cost-explorer/package.json b/clients/client-cost-explorer/package.json
index 67596d62c5a2..ca48b3da12fc 100644
--- a/clients/client-cost-explorer/package.json
+++ b/clients/client-cost-explorer/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-data-pipeline/package.json b/clients/client-data-pipeline/package.json
index 9d662483ed6e..39c1b12f6c8c 100644
--- a/clients/client-data-pipeline/package.json
+++ b/clients/client-data-pipeline/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-database-migration-service/package.json b/clients/client-database-migration-service/package.json
index 4f9839316d72..f890c3174f12 100644
--- a/clients/client-database-migration-service/package.json
+++ b/clients/client-database-migration-service/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-dataexchange/package.json b/clients/client-dataexchange/package.json
index 1ed5668fbb1c..dfa05d3d2bea 100644
--- a/clients/client-dataexchange/package.json
+++ b/clients/client-dataexchange/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-datasync/package.json b/clients/client-datasync/package.json
index 5fcd4b44954d..ef93b9e287d3 100644
--- a/clients/client-datasync/package.json
+++ b/clients/client-datasync/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-dax/package.json b/clients/client-dax/package.json
index 1bbe9cf7db49..fc76ca3d3320 100644
--- a/clients/client-dax/package.json
+++ b/clients/client-dax/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-detective/package.json b/clients/client-detective/package.json
index 7bf7ca21f630..8098342771c2 100644
--- a/clients/client-detective/package.json
+++ b/clients/client-detective/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-device-farm/package.json b/clients/client-device-farm/package.json
index 4c3360bfad35..6a1f77d1dc54 100644
--- a/clients/client-device-farm/package.json
+++ b/clients/client-device-farm/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-direct-connect/package.json b/clients/client-direct-connect/package.json
index d8b73e4f1677..8b51c1d6d3c4 100644
--- a/clients/client-direct-connect/package.json
+++ b/clients/client-direct-connect/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-directory-service/package.json b/clients/client-directory-service/package.json
index fe4d4f54d09a..4c8ad4f9951b 100644
--- a/clients/client-directory-service/package.json
+++ b/clients/client-directory-service/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-dlm/package.json b/clients/client-dlm/package.json
index db8a5c6a8115..244717f03a8a 100644
--- a/clients/client-dlm/package.json
+++ b/clients/client-dlm/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-docdb/package.json b/clients/client-docdb/package.json
index d18f5dd3f376..cf90d9599761 100644
--- a/clients/client-docdb/package.json
+++ b/clients/client-docdb/package.json
@@ -64,7 +64,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-dynamodb-streams/package.json b/clients/client-dynamodb-streams/package.json
index 609d1fb42510..66abbe469839 100644
--- a/clients/client-dynamodb-streams/package.json
+++ b/clients/client-dynamodb-streams/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-dynamodb/package.json b/clients/client-dynamodb/package.json
index a8621caf68a5..ce869129ca6d 100644
--- a/clients/client-dynamodb/package.json
+++ b/clients/client-dynamodb/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-ebs/package.json b/clients/client-ebs/package.json
index 0c748636f4bb..4f0141b9eb7b 100644
--- a/clients/client-ebs/package.json
+++ b/clients/client-ebs/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-ec2-instance-connect/package.json b/clients/client-ec2-instance-connect/package.json
index 0440744b3b58..34964c2d4966 100644
--- a/clients/client-ec2-instance-connect/package.json
+++ b/clients/client-ec2-instance-connect/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-ec2/package.json b/clients/client-ec2/package.json
index dfd821c31a5f..5909c132dee9 100644
--- a/clients/client-ec2/package.json
+++ b/clients/client-ec2/package.json
@@ -67,7 +67,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-ecr/package.json b/clients/client-ecr/package.json
index 063656ee661f..d7686ea05d5d 100644
--- a/clients/client-ecr/package.json
+++ b/clients/client-ecr/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-ecs/package.json b/clients/client-ecs/package.json
index 8c7579e31be1..d0b9fe1653fd 100644
--- a/clients/client-ecs/package.json
+++ b/clients/client-ecs/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-efs/package.json b/clients/client-efs/package.json
index 94821fa0a57d..81bc7b8fc46d 100644
--- a/clients/client-efs/package.json
+++ b/clients/client-efs/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-eks/package.json b/clients/client-eks/package.json
index 9af9ad23711d..cdc501690f12 100644
--- a/clients/client-eks/package.json
+++ b/clients/client-eks/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-elastic-beanstalk/package.json b/clients/client-elastic-beanstalk/package.json
index 580c10097ba2..0193b96cff8d 100644
--- a/clients/client-elastic-beanstalk/package.json
+++ b/clients/client-elastic-beanstalk/package.json
@@ -64,7 +64,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-elastic-inference/package.json b/clients/client-elastic-inference/package.json
index b6b05f674ab0..8ea2a7a1ccd2 100644
--- a/clients/client-elastic-inference/package.json
+++ b/clients/client-elastic-inference/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-elastic-load-balancing-v2/package.json b/clients/client-elastic-load-balancing-v2/package.json
index 69f2cb5dbbc4..e3392befbe7f 100644
--- a/clients/client-elastic-load-balancing-v2/package.json
+++ b/clients/client-elastic-load-balancing-v2/package.json
@@ -64,7 +64,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-elastic-load-balancing/package.json b/clients/client-elastic-load-balancing/package.json
index 1e839072668f..ff3b246c1b91 100644
--- a/clients/client-elastic-load-balancing/package.json
+++ b/clients/client-elastic-load-balancing/package.json
@@ -64,7 +64,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-elastic-transcoder/package.json b/clients/client-elastic-transcoder/package.json
index 7dca1c14d396..c165199cdb46 100644
--- a/clients/client-elastic-transcoder/package.json
+++ b/clients/client-elastic-transcoder/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-elasticache/package.json b/clients/client-elasticache/package.json
index de1929213e45..9e32cb38b57e 100644
--- a/clients/client-elasticache/package.json
+++ b/clients/client-elasticache/package.json
@@ -64,7 +64,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-elasticsearch-service/package.json b/clients/client-elasticsearch-service/package.json
index d75f3dbbba75..a1c7145c0750 100644
--- a/clients/client-elasticsearch-service/package.json
+++ b/clients/client-elasticsearch-service/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-emr/package.json b/clients/client-emr/package.json
index 760775d93eb2..cc37cf2b1d24 100644
--- a/clients/client-emr/package.json
+++ b/clients/client-emr/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-eventbridge/package.json b/clients/client-eventbridge/package.json
index 702a5dbb9f75..45fd39d44de2 100644
--- a/clients/client-eventbridge/package.json
+++ b/clients/client-eventbridge/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-firehose/package.json b/clients/client-firehose/package.json
index 301a0fd6e1e2..606c23bbbb28 100644
--- a/clients/client-firehose/package.json
+++ b/clients/client-firehose/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-fms/package.json b/clients/client-fms/package.json
index 07dd8ea88788..28a3a431eace 100644
--- a/clients/client-fms/package.json
+++ b/clients/client-fms/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-forecast/package.json b/clients/client-forecast/package.json
index 36bad51382f6..3a86a9ea77f1 100644
--- a/clients/client-forecast/package.json
+++ b/clients/client-forecast/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-forecastquery/package.json b/clients/client-forecastquery/package.json
index 629414bcf070..57f1b7950099 100644
--- a/clients/client-forecastquery/package.json
+++ b/clients/client-forecastquery/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-frauddetector/package.json b/clients/client-frauddetector/package.json
index cac067980143..2c32e5f4e819 100644
--- a/clients/client-frauddetector/package.json
+++ b/clients/client-frauddetector/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-fsx/package.json b/clients/client-fsx/package.json
index e34ddb305120..1341aaa56031 100644
--- a/clients/client-fsx/package.json
+++ b/clients/client-fsx/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-gamelift/package.json b/clients/client-gamelift/package.json
index c5eb49ce111c..998590b08ac8 100644
--- a/clients/client-gamelift/package.json
+++ b/clients/client-gamelift/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-glacier/package.json b/clients/client-glacier/package.json
index ff39ed0db454..cef49199933d 100644
--- a/clients/client-glacier/package.json
+++ b/clients/client-glacier/package.json
@@ -66,7 +66,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-global-accelerator/package.json b/clients/client-global-accelerator/package.json
index 50ec78373a13..cf99453d6610 100644
--- a/clients/client-global-accelerator/package.json
+++ b/clients/client-global-accelerator/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-glue/package.json b/clients/client-glue/package.json
index 608ee57ace0b..045a095fcfde 100644
--- a/clients/client-glue/package.json
+++ b/clients/client-glue/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-greengrass/package.json b/clients/client-greengrass/package.json
index 370964c373dc..003424de535b 100644
--- a/clients/client-greengrass/package.json
+++ b/clients/client-greengrass/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-groundstation/package.json b/clients/client-groundstation/package.json
index 5171c29a47e0..8f42079ed69e 100644
--- a/clients/client-groundstation/package.json
+++ b/clients/client-groundstation/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-guardduty/package.json b/clients/client-guardduty/package.json
index 91c14ed68cf5..2584dc80af85 100644
--- a/clients/client-guardduty/package.json
+++ b/clients/client-guardduty/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-health/package.json b/clients/client-health/package.json
index c6dfaed85dc1..6c1d353c4f53 100644
--- a/clients/client-health/package.json
+++ b/clients/client-health/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-iam/package.json b/clients/client-iam/package.json
index b2f904dc7c94..3561b971e021 100644
--- a/clients/client-iam/package.json
+++ b/clients/client-iam/package.json
@@ -64,7 +64,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-imagebuilder/package.json b/clients/client-imagebuilder/package.json
index 3d7d47c4fb76..35d3c3f3883b 100644
--- a/clients/client-imagebuilder/package.json
+++ b/clients/client-imagebuilder/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-inspector/package.json b/clients/client-inspector/package.json
index 3a4192cfc570..d421103472f4 100644
--- a/clients/client-inspector/package.json
+++ b/clients/client-inspector/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-iot-1click-devices-service/package.json b/clients/client-iot-1click-devices-service/package.json
index 348011675464..ff945a7d1f15 100644
--- a/clients/client-iot-1click-devices-service/package.json
+++ b/clients/client-iot-1click-devices-service/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-iot-1click-projects/package.json b/clients/client-iot-1click-projects/package.json
index c8fcce66d5e5..988e97ded651 100644
--- a/clients/client-iot-1click-projects/package.json
+++ b/clients/client-iot-1click-projects/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-iot-data-plane/package.json b/clients/client-iot-data-plane/package.json
index 6452d514986d..727d06fef95f 100644
--- a/clients/client-iot-data-plane/package.json
+++ b/clients/client-iot-data-plane/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-iot-events-data/package.json b/clients/client-iot-events-data/package.json
index 7c6b44ce5509..546cb41de4c9 100644
--- a/clients/client-iot-events-data/package.json
+++ b/clients/client-iot-events-data/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-iot-events/package.json b/clients/client-iot-events/package.json
index 9e81a33bd4e7..5cd550c8d3a4 100644
--- a/clients/client-iot-events/package.json
+++ b/clients/client-iot-events/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-iot-jobs-data-plane/package.json b/clients/client-iot-jobs-data-plane/package.json
index 98712287c403..b784920ca308 100644
--- a/clients/client-iot-jobs-data-plane/package.json
+++ b/clients/client-iot-jobs-data-plane/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-iot/package.json b/clients/client-iot/package.json
index aa4274c1245d..caa3cc785cc6 100644
--- a/clients/client-iot/package.json
+++ b/clients/client-iot/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-iotanalytics/package.json b/clients/client-iotanalytics/package.json
index bf267733a4f1..ca1e5616a46b 100644
--- a/clients/client-iotanalytics/package.json
+++ b/clients/client-iotanalytics/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-iotsecuretunneling/package.json b/clients/client-iotsecuretunneling/package.json
index da129f66ef5a..7c0d42940357 100644
--- a/clients/client-iotsecuretunneling/package.json
+++ b/clients/client-iotsecuretunneling/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-iotthingsgraph/package.json b/clients/client-iotthingsgraph/package.json
index 4aab05cdcd11..00913466b477 100644
--- a/clients/client-iotthingsgraph/package.json
+++ b/clients/client-iotthingsgraph/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-kafka/package.json b/clients/client-kafka/package.json
index 255cd59693fc..2c586d5afa10 100644
--- a/clients/client-kafka/package.json
+++ b/clients/client-kafka/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-kendra/package.json b/clients/client-kendra/package.json
index 882ac54451f9..310b801b6eb4 100644
--- a/clients/client-kendra/package.json
+++ b/clients/client-kendra/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-kinesis-analytics-v2/package.json b/clients/client-kinesis-analytics-v2/package.json
index aaaa0eec809c..641d52b97ff7 100644
--- a/clients/client-kinesis-analytics-v2/package.json
+++ b/clients/client-kinesis-analytics-v2/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-kinesis-analytics/package.json b/clients/client-kinesis-analytics/package.json
index 3764ef8973aa..af6d8a9c9050 100644
--- a/clients/client-kinesis-analytics/package.json
+++ b/clients/client-kinesis-analytics/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-kinesis-video-archived-media/package.json b/clients/client-kinesis-video-archived-media/package.json
index 1034673b97c1..9861ee45ad1d 100644
--- a/clients/client-kinesis-video-archived-media/package.json
+++ b/clients/client-kinesis-video-archived-media/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-kinesis-video-media/package.json b/clients/client-kinesis-video-media/package.json
index d56950e985b3..0714eb19321f 100644
--- a/clients/client-kinesis-video-media/package.json
+++ b/clients/client-kinesis-video-media/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-kinesis-video-signaling/package.json b/clients/client-kinesis-video-signaling/package.json
index b3f70c6555c8..baff6ca962ed 100644
--- a/clients/client-kinesis-video-signaling/package.json
+++ b/clients/client-kinesis-video-signaling/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-kinesis-video/package.json b/clients/client-kinesis-video/package.json
index d06308ff4d54..4ebb022d15a0 100644
--- a/clients/client-kinesis-video/package.json
+++ b/clients/client-kinesis-video/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-kinesis/package.json b/clients/client-kinesis/package.json
index 6f35cf5b3c50..d58a26dd75da 100644
--- a/clients/client-kinesis/package.json
+++ b/clients/client-kinesis/package.json
@@ -66,7 +66,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-kms/package.json b/clients/client-kms/package.json
index 6c6344ee27d3..f5caeaaf6cda 100644
--- a/clients/client-kms/package.json
+++ b/clients/client-kms/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-lakeformation/package.json b/clients/client-lakeformation/package.json
index b87ceea72e72..90addcdcef2e 100644
--- a/clients/client-lakeformation/package.json
+++ b/clients/client-lakeformation/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-lambda/package.json b/clients/client-lambda/package.json
index f811c436da34..edf8ac530394 100644
--- a/clients/client-lambda/package.json
+++ b/clients/client-lambda/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-lex-model-building-service/package.json b/clients/client-lex-model-building-service/package.json
index 3bd539cc3ab8..7d0ddb2b2715 100644
--- a/clients/client-lex-model-building-service/package.json
+++ b/clients/client-lex-model-building-service/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-lex-runtime-service/package.json b/clients/client-lex-runtime-service/package.json
index 0531937ab44a..9c3a7d8b8a05 100644
--- a/clients/client-lex-runtime-service/package.json
+++ b/clients/client-lex-runtime-service/package.json
@@ -66,7 +66,7 @@
     "jest": "^25.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-license-manager/package.json b/clients/client-license-manager/package.json
index cece79ec6ce8..49186acbf995 100644
--- a/clients/client-license-manager/package.json
+++ b/clients/client-license-manager/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-lightsail/package.json b/clients/client-lightsail/package.json
index c941cc3509bf..32f52efd6d9f 100644
--- a/clients/client-lightsail/package.json
+++ b/clients/client-lightsail/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-machine-learning/package.json b/clients/client-machine-learning/package.json
index acf880059351..c1cb7d14e15d 100644
--- a/clients/client-machine-learning/package.json
+++ b/clients/client-machine-learning/package.json
@@ -64,7 +64,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-macie/package.json b/clients/client-macie/package.json
index 89b32073b6e7..6d991759cdf0 100644
--- a/clients/client-macie/package.json
+++ b/clients/client-macie/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-managedblockchain/package.json b/clients/client-managedblockchain/package.json
index be5776353f6c..e0fe02761c5a 100644
--- a/clients/client-managedblockchain/package.json
+++ b/clients/client-managedblockchain/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-marketplace-catalog/package.json b/clients/client-marketplace-catalog/package.json
index ed14ed73ca7a..4807172709de 100644
--- a/clients/client-marketplace-catalog/package.json
+++ b/clients/client-marketplace-catalog/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-marketplace-commerce-analytics/package.json b/clients/client-marketplace-commerce-analytics/package.json
index 1a7ebe57adbe..e65112614904 100644
--- a/clients/client-marketplace-commerce-analytics/package.json
+++ b/clients/client-marketplace-commerce-analytics/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-marketplace-entitlement-service/package.json b/clients/client-marketplace-entitlement-service/package.json
index 655722f113ed..d4fbe697c787 100644
--- a/clients/client-marketplace-entitlement-service/package.json
+++ b/clients/client-marketplace-entitlement-service/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-marketplace-metering/package.json b/clients/client-marketplace-metering/package.json
index 635a001ba8cc..8b69a523b70f 100644
--- a/clients/client-marketplace-metering/package.json
+++ b/clients/client-marketplace-metering/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-mediaconnect/package.json b/clients/client-mediaconnect/package.json
index 520b39c78610..76bcf844d81f 100644
--- a/clients/client-mediaconnect/package.json
+++ b/clients/client-mediaconnect/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-mediaconvert/package.json b/clients/client-mediaconvert/package.json
index ba3f3602b27c..e7de72e4ff45 100644
--- a/clients/client-mediaconvert/package.json
+++ b/clients/client-mediaconvert/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-medialive/package.json b/clients/client-medialive/package.json
index eb91b3c6b17d..bd333234c4b7 100644
--- a/clients/client-medialive/package.json
+++ b/clients/client-medialive/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-mediapackage-vod/package.json b/clients/client-mediapackage-vod/package.json
index 26692961e762..08014506950f 100644
--- a/clients/client-mediapackage-vod/package.json
+++ b/clients/client-mediapackage-vod/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-mediapackage/package.json b/clients/client-mediapackage/package.json
index 003cb8b681f1..e424d80f9332 100644
--- a/clients/client-mediapackage/package.json
+++ b/clients/client-mediapackage/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-mediastore-data/package.json b/clients/client-mediastore-data/package.json
index 6bac0fd26009..8c2092c28dac 100644
--- a/clients/client-mediastore-data/package.json
+++ b/clients/client-mediastore-data/package.json
@@ -66,7 +66,7 @@
     "jest": "^25.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-mediastore/package.json b/clients/client-mediastore/package.json
index 06f383c640e2..71dcdfdfa18e 100644
--- a/clients/client-mediastore/package.json
+++ b/clients/client-mediastore/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-mediatailor/package.json b/clients/client-mediatailor/package.json
index d0c48d7869f9..f18850183c5e 100644
--- a/clients/client-mediatailor/package.json
+++ b/clients/client-mediatailor/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-migration-hub/package.json b/clients/client-migration-hub/package.json
index 5159b025235e..b673a7fcaad9 100644
--- a/clients/client-migration-hub/package.json
+++ b/clients/client-migration-hub/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-migrationhub-config/package.json b/clients/client-migrationhub-config/package.json
index ec9aea61ae88..86ea56b7f79c 100644
--- a/clients/client-migrationhub-config/package.json
+++ b/clients/client-migrationhub-config/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-mobile/package.json b/clients/client-mobile/package.json
index a01c3d261b20..905a0dd06fff 100644
--- a/clients/client-mobile/package.json
+++ b/clients/client-mobile/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-mq/package.json b/clients/client-mq/package.json
index bf208c2132d5..b971ef5d84ce 100644
--- a/clients/client-mq/package.json
+++ b/clients/client-mq/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-mturk/package.json b/clients/client-mturk/package.json
index 1c2f8ed5c94d..1b214b120ff1 100644
--- a/clients/client-mturk/package.json
+++ b/clients/client-mturk/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-neptune/package.json b/clients/client-neptune/package.json
index d59332b6b48a..a37815bc5db6 100644
--- a/clients/client-neptune/package.json
+++ b/clients/client-neptune/package.json
@@ -64,7 +64,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-networkmanager/package.json b/clients/client-networkmanager/package.json
index d1b82573fd79..f145f7af8cd5 100644
--- a/clients/client-networkmanager/package.json
+++ b/clients/client-networkmanager/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-opsworks/package.json b/clients/client-opsworks/package.json
index 74a3a42e240a..2eb8470c1161 100644
--- a/clients/client-opsworks/package.json
+++ b/clients/client-opsworks/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-opsworkscm/package.json b/clients/client-opsworkscm/package.json
index 671bddc90d0a..316339657068 100644
--- a/clients/client-opsworkscm/package.json
+++ b/clients/client-opsworkscm/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-organizations/package.json b/clients/client-organizations/package.json
index bb046e010700..06f6ba378343 100644
--- a/clients/client-organizations/package.json
+++ b/clients/client-organizations/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-outposts/package.json b/clients/client-outposts/package.json
index c43bb61f5292..c9c82df02fed 100644
--- a/clients/client-outposts/package.json
+++ b/clients/client-outposts/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-personalize-events/package.json b/clients/client-personalize-events/package.json
index 2584178faae6..80751a9a71ec 100644
--- a/clients/client-personalize-events/package.json
+++ b/clients/client-personalize-events/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-personalize-runtime/package.json b/clients/client-personalize-runtime/package.json
index e66e481c061b..e250f61e6338 100644
--- a/clients/client-personalize-runtime/package.json
+++ b/clients/client-personalize-runtime/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-personalize/package.json b/clients/client-personalize/package.json
index c602633c3aa8..111cf22b4fe4 100644
--- a/clients/client-personalize/package.json
+++ b/clients/client-personalize/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-pi/package.json b/clients/client-pi/package.json
index cca19fd10048..f140002f6d1d 100644
--- a/clients/client-pi/package.json
+++ b/clients/client-pi/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-pinpoint-email/package.json b/clients/client-pinpoint-email/package.json
index f1f390ad1202..17c2596a397a 100644
--- a/clients/client-pinpoint-email/package.json
+++ b/clients/client-pinpoint-email/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-pinpoint-sms-voice/package.json b/clients/client-pinpoint-sms-voice/package.json
index 45d3139dd754..c926dbafe91e 100644
--- a/clients/client-pinpoint-sms-voice/package.json
+++ b/clients/client-pinpoint-sms-voice/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-pinpoint/package.json b/clients/client-pinpoint/package.json
index 211225a6d14d..76f530403ac8 100644
--- a/clients/client-pinpoint/package.json
+++ b/clients/client-pinpoint/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-polly/package.json b/clients/client-polly/package.json
index e79654b0d096..e399f980e3ed 100644
--- a/clients/client-polly/package.json
+++ b/clients/client-polly/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-pricing/package.json b/clients/client-pricing/package.json
index 5d281fa6ea22..69f1526e106b 100644
--- a/clients/client-pricing/package.json
+++ b/clients/client-pricing/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-qldb-session/package.json b/clients/client-qldb-session/package.json
index 021e39cf3f46..e84c5bf467d2 100644
--- a/clients/client-qldb-session/package.json
+++ b/clients/client-qldb-session/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-qldb/package.json b/clients/client-qldb/package.json
index 9476f6f3b5ff..90f5ca2a4995 100644
--- a/clients/client-qldb/package.json
+++ b/clients/client-qldb/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-quicksight/package.json b/clients/client-quicksight/package.json
index 603df29ee89d..ef4e9571212c 100644
--- a/clients/client-quicksight/package.json
+++ b/clients/client-quicksight/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-ram/package.json b/clients/client-ram/package.json
index 90d0ea8ccb26..51d56fa85618 100644
--- a/clients/client-ram/package.json
+++ b/clients/client-ram/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-rds-data/package.json b/clients/client-rds-data/package.json
index f4b917e7c369..a414864a9dd3 100644
--- a/clients/client-rds-data/package.json
+++ b/clients/client-rds-data/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-rds/package.json b/clients/client-rds/package.json
index 15f3509869d1..06587b15356a 100644
--- a/clients/client-rds/package.json
+++ b/clients/client-rds/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-redshift/package.json b/clients/client-redshift/package.json
index 67862d2a3105..ffe3e96cedbe 100644
--- a/clients/client-redshift/package.json
+++ b/clients/client-redshift/package.json
@@ -64,7 +64,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-rekognition/package.json b/clients/client-rekognition/package.json
index 1eb0471e8a19..fd67b3ae268c 100644
--- a/clients/client-rekognition/package.json
+++ b/clients/client-rekognition/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-resource-groups-tagging-api/package.json b/clients/client-resource-groups-tagging-api/package.json
index 2d862b7451ce..05bb57d57d52 100644
--- a/clients/client-resource-groups-tagging-api/package.json
+++ b/clients/client-resource-groups-tagging-api/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-resource-groups/package.json b/clients/client-resource-groups/package.json
index 2834bdcbbfb7..e2384fe7b26a 100644
--- a/clients/client-resource-groups/package.json
+++ b/clients/client-resource-groups/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-robomaker/package.json b/clients/client-robomaker/package.json
index f6eb04302958..3f5b557eccf6 100644
--- a/clients/client-robomaker/package.json
+++ b/clients/client-robomaker/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-route-53-domains/package.json b/clients/client-route-53-domains/package.json
index 5079bdba4f92..71b66d60d23a 100644
--- a/clients/client-route-53-domains/package.json
+++ b/clients/client-route-53-domains/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-route-53/package.json b/clients/client-route-53/package.json
index f21bd82380c5..0476f3bc8c1b 100644
--- a/clients/client-route-53/package.json
+++ b/clients/client-route-53/package.json
@@ -66,7 +66,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-route53resolver/package.json b/clients/client-route53resolver/package.json
index 2c19fa57a763..630921130b79 100644
--- a/clients/client-route53resolver/package.json
+++ b/clients/client-route53resolver/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-s3-control/package.json b/clients/client-s3-control/package.json
index d55dafe292b1..15831857b547 100644
--- a/clients/client-s3-control/package.json
+++ b/clients/client-s3-control/package.json
@@ -68,7 +68,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-s3/package.json b/clients/client-s3/package.json
index eb6f6933e959..f0628d8d7f7f 100644
--- a/clients/client-s3/package.json
+++ b/clients/client-s3/package.json
@@ -81,7 +81,7 @@
     "jest": "^25.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-sagemaker-a2i-runtime/package.json b/clients/client-sagemaker-a2i-runtime/package.json
index bbe8d029d3c3..02921438f43e 100644
--- a/clients/client-sagemaker-a2i-runtime/package.json
+++ b/clients/client-sagemaker-a2i-runtime/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-sagemaker-runtime/package.json b/clients/client-sagemaker-runtime/package.json
index b47031eba209..736bca750883 100644
--- a/clients/client-sagemaker-runtime/package.json
+++ b/clients/client-sagemaker-runtime/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-sagemaker/package.json b/clients/client-sagemaker/package.json
index 16ba3bd1d1a3..564e8adc601e 100644
--- a/clients/client-sagemaker/package.json
+++ b/clients/client-sagemaker/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-savingsplans/package.json b/clients/client-savingsplans/package.json
index 6e09a0b47076..1e3615010f28 100644
--- a/clients/client-savingsplans/package.json
+++ b/clients/client-savingsplans/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-schemas/package.json b/clients/client-schemas/package.json
index 14034e76610f..f4370616621f 100644
--- a/clients/client-schemas/package.json
+++ b/clients/client-schemas/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-secrets-manager/package.json b/clients/client-secrets-manager/package.json
index 6ccb59d17dc9..4e273483d6fa 100644
--- a/clients/client-secrets-manager/package.json
+++ b/clients/client-secrets-manager/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-securityhub/package.json b/clients/client-securityhub/package.json
index 4cd68bb13afa..4a56abc2449d 100644
--- a/clients/client-securityhub/package.json
+++ b/clients/client-securityhub/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-serverlessapplicationrepository/package.json b/clients/client-serverlessapplicationrepository/package.json
index adacde33bf77..aa6947afc2de 100644
--- a/clients/client-serverlessapplicationrepository/package.json
+++ b/clients/client-serverlessapplicationrepository/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-service-catalog/package.json b/clients/client-service-catalog/package.json
index e9149f84e859..bae8f73dd6cd 100644
--- a/clients/client-service-catalog/package.json
+++ b/clients/client-service-catalog/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-service-quotas/package.json b/clients/client-service-quotas/package.json
index a1c7b9cf75dd..3c15740e41ec 100644
--- a/clients/client-service-quotas/package.json
+++ b/clients/client-service-quotas/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-servicediscovery/package.json b/clients/client-servicediscovery/package.json
index ae658c8f1619..a61f59fd168d 100644
--- a/clients/client-servicediscovery/package.json
+++ b/clients/client-servicediscovery/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-ses/package.json b/clients/client-ses/package.json
index 6e41b58704ee..0a4884ab2ef3 100644
--- a/clients/client-ses/package.json
+++ b/clients/client-ses/package.json
@@ -64,7 +64,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-sesv2/package.json b/clients/client-sesv2/package.json
index 895ce63a8c40..3237b8f39f16 100644
--- a/clients/client-sesv2/package.json
+++ b/clients/client-sesv2/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-sfn/package.json b/clients/client-sfn/package.json
index 3d65ccc0fdeb..66624b0e5449 100644
--- a/clients/client-sfn/package.json
+++ b/clients/client-sfn/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-shield/package.json b/clients/client-shield/package.json
index 861cf6139cb9..ae575af3ac7a 100644
--- a/clients/client-shield/package.json
+++ b/clients/client-shield/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-signer/package.json b/clients/client-signer/package.json
index 952ef763ecc1..3a8b123a24ff 100644
--- a/clients/client-signer/package.json
+++ b/clients/client-signer/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-sms/package.json b/clients/client-sms/package.json
index eff1d04bbc17..fd4b5e0c0a4e 100644
--- a/clients/client-sms/package.json
+++ b/clients/client-sms/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-snowball/package.json b/clients/client-snowball/package.json
index 528cb7cb3c96..f2b6578bcac6 100644
--- a/clients/client-snowball/package.json
+++ b/clients/client-snowball/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-sns/package.json b/clients/client-sns/package.json
index a7aa60c6bbac..7cf5b147b3b2 100644
--- a/clients/client-sns/package.json
+++ b/clients/client-sns/package.json
@@ -64,7 +64,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-sqs/package.json b/clients/client-sqs/package.json
index 0f5b2e706b5c..913acddebbce 100644
--- a/clients/client-sqs/package.json
+++ b/clients/client-sqs/package.json
@@ -66,7 +66,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-ssm/package.json b/clients/client-ssm/package.json
index 904493c16fa2..db62760b6bfa 100644
--- a/clients/client-ssm/package.json
+++ b/clients/client-ssm/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-sso-oidc/package.json b/clients/client-sso-oidc/package.json
index dd333a7096bd..97d1ce7e4944 100644
--- a/clients/client-sso-oidc/package.json
+++ b/clients/client-sso-oidc/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-sso/package.json b/clients/client-sso/package.json
index 3dfc9c737307..7a915fd2986b 100644
--- a/clients/client-sso/package.json
+++ b/clients/client-sso/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-storage-gateway/package.json b/clients/client-storage-gateway/package.json
index b9f72aa28e50..b34efadc655d 100644
--- a/clients/client-storage-gateway/package.json
+++ b/clients/client-storage-gateway/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-sts/package.json b/clients/client-sts/package.json
index cce2c36fe321..e3967b3d06af 100644
--- a/clients/client-sts/package.json
+++ b/clients/client-sts/package.json
@@ -64,7 +64,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-support/package.json b/clients/client-support/package.json
index c0a0e760059c..e2e93935d9db 100644
--- a/clients/client-support/package.json
+++ b/clients/client-support/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-swf/package.json b/clients/client-swf/package.json
index 56249dc7f641..d96388bf29b2 100644
--- a/clients/client-swf/package.json
+++ b/clients/client-swf/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-textract/package.json b/clients/client-textract/package.json
index 9fdc81b51ce7..6ebd4c090203 100644
--- a/clients/client-textract/package.json
+++ b/clients/client-textract/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-transcribe-streaming/package.json b/clients/client-transcribe-streaming/package.json
index 308f422b75f5..100821125ea3 100644
--- a/clients/client-transcribe-streaming/package.json
+++ b/clients/client-transcribe-streaming/package.json
@@ -71,7 +71,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-transcribe/package.json b/clients/client-transcribe/package.json
index 780e7f0ddae0..90b9c7177250 100644
--- a/clients/client-transcribe/package.json
+++ b/clients/client-transcribe/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-transfer/package.json b/clients/client-transfer/package.json
index 0d3f6fb10c0c..392de3d8f9cd 100644
--- a/clients/client-transfer/package.json
+++ b/clients/client-transfer/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-translate/package.json b/clients/client-translate/package.json
index aac79fe4c8c5..67fdac1c02cd 100644
--- a/clients/client-translate/package.json
+++ b/clients/client-translate/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-waf-regional/package.json b/clients/client-waf-regional/package.json
index 3d76106165eb..8c6c9187decb 100644
--- a/clients/client-waf-regional/package.json
+++ b/clients/client-waf-regional/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-waf/package.json b/clients/client-waf/package.json
index 2e5680a435c3..f75a3bd4dea7 100644
--- a/clients/client-waf/package.json
+++ b/clients/client-waf/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-wafv2/package.json b/clients/client-wafv2/package.json
index 7bfb52a48f2c..114c6c40f5c8 100644
--- a/clients/client-wafv2/package.json
+++ b/clients/client-wafv2/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-workdocs/package.json b/clients/client-workdocs/package.json
index e8255bf6882b..e4832b1b51fd 100644
--- a/clients/client-workdocs/package.json
+++ b/clients/client-workdocs/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-worklink/package.json b/clients/client-worklink/package.json
index 99ed57d67c07..4c040e6c0784 100644
--- a/clients/client-worklink/package.json
+++ b/clients/client-worklink/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-workmail/package.json b/clients/client-workmail/package.json
index 901932f433ce..e23d41d5045b 100644
--- a/clients/client-workmail/package.json
+++ b/clients/client-workmail/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-workmailmessageflow/package.json b/clients/client-workmailmessageflow/package.json
index bf1cd6340068..0c14bdf2c610 100644
--- a/clients/client-workmailmessageflow/package.json
+++ b/clients/client-workmailmessageflow/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-workspaces/package.json b/clients/client-workspaces/package.json
index a5c4ed828660..bc375414a796 100644
--- a/clients/client-workspaces/package.json
+++ b/clients/client-workspaces/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/clients/client-xray/package.json b/clients/client-xray/package.json
index 38bf705d268b..fd50bd75310b 100644
--- a/clients/client-xray/package.json
+++ b/clients/client-xray/package.json
@@ -63,7 +63,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/package.json b/package.json
index f35fb95f6103..069c6e315949 100644
--- a/package.json
+++ b/package.json
@@ -78,7 +78,7 @@
     "prettier": "2.0.5",
     "puppeteer": "^5.1.0",
     "ts-loader": "^7.0.5",
-    "typescript": "~3.9.3",
+    "typescript": "~4.0.2",
     "verdaccio": "^4.7.2",
     "webpack": "^4.43.0",
     "webpack-cli": "^3.3.12",
@@ -110,4 +110,4 @@
     ],
     "**/*.{ts,js,md,json}": "prettier --write"
   }
-}
\ No newline at end of file
+}
diff --git a/packages/abort-controller/package.json b/packages/abort-controller/package.json
index faa674404e38..077c3cf6efec 100644
--- a/packages/abort-controller/package.json
+++ b/packages/abort-controller/package.json
@@ -25,6 +25,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/body-checksum-browser/package.json b/packages/body-checksum-browser/package.json
index 73731f6d1e24..d06ae92993a5 100644
--- a/packages/body-checksum-browser/package.json
+++ b/packages/body-checksum-browser/package.json
@@ -30,6 +30,6 @@
     "@aws-sdk/util-utf8-browser": "1.0.0-gamma.5",
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/body-checksum-node/package.json b/packages/body-checksum-node/package.json
index a5bab82537a9..d179530b9109 100644
--- a/packages/body-checksum-node/package.json
+++ b/packages/body-checksum-node/package.json
@@ -31,6 +31,6 @@
     "@aws-sdk/util-utf8-node": "1.0.0-gamma.5",
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/chunked-blob-reader-native/package.json b/packages/chunked-blob-reader-native/package.json
index edc32ee2cc3a..5558acedad22 100644
--- a/packages/chunked-blob-reader-native/package.json
+++ b/packages/chunked-blob-reader-native/package.json
@@ -24,6 +24,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/chunked-blob-reader/package.json b/packages/chunked-blob-reader/package.json
index 45b7463d0046..597947f70c20 100644
--- a/packages/chunked-blob-reader/package.json
+++ b/packages/chunked-blob-reader/package.json
@@ -23,6 +23,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/chunked-stream-reader-node/package.json b/packages/chunked-stream-reader-node/package.json
index ef4e623c634a..4bd42726cb48 100644
--- a/packages/chunked-stream-reader-node/package.json
+++ b/packages/chunked-stream-reader-node/package.json
@@ -24,6 +24,6 @@
     "@types/jest": "^26.0.4",
     "@types/node": "^10.0.0",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/client-documentation-generator/package.json b/packages/client-documentation-generator/package.json
index 00d92ad402fc..c5f5830a29a2 100644
--- a/packages/client-documentation-generator/package.json
+++ b/packages/client-documentation-generator/package.json
@@ -28,6 +28,6 @@
     "@types/node": "^10.0.0",
     "jest": "^26.1.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/config-resolver/package.json b/packages/config-resolver/package.json
index dc10ae55719a..5c78d90ab570 100644
--- a/packages/config-resolver/package.json
+++ b/packages/config-resolver/package.json
@@ -22,7 +22,7 @@
     "@aws-sdk/node-config-provider": "1.0.0-gamma.0",
     "jest": "^26.1.0",
     "tslib": "^1.8.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "dependencies": {
     "@aws-sdk/signature-v4": "1.0.0-gamma.5",
diff --git a/packages/credential-provider-cognito-identity/package.json b/packages/credential-provider-cognito-identity/package.json
index fda338a12598..87297b779d12 100644
--- a/packages/credential-provider-cognito-identity/package.json
+++ b/packages/credential-provider-cognito-identity/package.json
@@ -27,6 +27,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/credential-provider-env/package.json b/packages/credential-provider-env/package.json
index af873f4f277a..901aa91d0e00 100644
--- a/packages/credential-provider-env/package.json
+++ b/packages/credential-provider-env/package.json
@@ -30,7 +30,7 @@
     "@types/jest": "^26.0.4",
     "@types/node": "^10.0.0",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "types": "./dist/cjs/index.d.ts"
 }
diff --git a/packages/credential-provider-imds/package.json b/packages/credential-provider-imds/package.json
index 906e67e6bff6..d78bd742acca 100644
--- a/packages/credential-provider-imds/package.json
+++ b/packages/credential-provider-imds/package.json
@@ -31,7 +31,7 @@
     "@types/node": "^10.0.0",
     "jest": "^26.1.0",
     "nock": "^13.0.2",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "types": "./dist/cjs/index.d.ts"
 }
diff --git a/packages/credential-provider-ini/package.json b/packages/credential-provider-ini/package.json
index 2dde18ae8aea..9b9eb54aac19 100644
--- a/packages/credential-provider-ini/package.json
+++ b/packages/credential-provider-ini/package.json
@@ -31,7 +31,7 @@
     "@types/jest": "^26.0.4",
     "@types/node": "^10.0.0",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "types": "./dist/cjs/index.d.ts"
 }
diff --git a/packages/credential-provider-node/package.json b/packages/credential-provider-node/package.json
index e14ccc6425ad..4b73024cc00d 100644
--- a/packages/credential-provider-node/package.json
+++ b/packages/credential-provider-node/package.json
@@ -38,7 +38,7 @@
     "@types/jest": "^26.0.4",
     "@types/node": "^10.0.0",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "types": "./dist/cjs/index.d.ts"
 }
diff --git a/packages/credential-provider-process/package.json b/packages/credential-provider-process/package.json
index e91888dfe3af..96ddf8851fb7 100644
--- a/packages/credential-provider-process/package.json
+++ b/packages/credential-provider-process/package.json
@@ -32,7 +32,7 @@
     "@types/jest": "^26.0.4",
     "@types/node": "^10.0.0",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "types": "./dist/cjs/index.d.ts"
 }
diff --git a/packages/eventstream-handler-node/package.json b/packages/eventstream-handler-node/package.json
index 77511b2f9722..64b26da2a6d0 100644
--- a/packages/eventstream-handler-node/package.json
+++ b/packages/eventstream-handler-node/package.json
@@ -26,7 +26,7 @@
     "@aws-sdk/util-utf8-node": "1.0.0-gamma.5",
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">= 10.0.0"
diff --git a/packages/eventstream-marshaller/package.json b/packages/eventstream-marshaller/package.json
index 1d2a0a3a711d..0eb036ba121b 100644
--- a/packages/eventstream-marshaller/package.json
+++ b/packages/eventstream-marshaller/package.json
@@ -29,7 +29,7 @@
     "@types/jest": "^26.0.4",
     "@types/node": "^10.0.0",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "browser": {
     "@aws-sdk/util-utf8-node": "@aws-sdk/util-utf8-browser"
diff --git a/packages/eventstream-serde-browser/package.json b/packages/eventstream-serde-browser/package.json
index 4b4bbd3f7f74..1af883fddd85 100644
--- a/packages/eventstream-serde-browser/package.json
+++ b/packages/eventstream-serde-browser/package.json
@@ -26,7 +26,7 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">= 10.0.0"
diff --git a/packages/eventstream-serde-config-resolver/package.json b/packages/eventstream-serde-config-resolver/package.json
index fa696eb403a3..0f3b51178fbe 100644
--- a/packages/eventstream-serde-config-resolver/package.json
+++ b/packages/eventstream-serde-config-resolver/package.json
@@ -24,7 +24,7 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">= 10.0.0"
diff --git a/packages/eventstream-serde-node/package.json b/packages/eventstream-serde-node/package.json
index 58b6625e7261..43c792269099 100644
--- a/packages/eventstream-serde-node/package.json
+++ b/packages/eventstream-serde-node/package.json
@@ -27,7 +27,7 @@
     "@aws-sdk/util-utf8-node": "1.0.0-gamma.5",
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">= 10.0.0"
diff --git a/packages/eventstream-serde-universal/package.json b/packages/eventstream-serde-universal/package.json
index 5e80f580539d..8d018d1d7fbf 100644
--- a/packages/eventstream-serde-universal/package.json
+++ b/packages/eventstream-serde-universal/package.json
@@ -26,7 +26,7 @@
     "@aws-sdk/util-utf8-node": "1.0.0-gamma.5",
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">= 10.0.0"
diff --git a/packages/fetch-http-handler/package.json b/packages/fetch-http-handler/package.json
index 69d322750175..c1a24b2e2d64 100644
--- a/packages/fetch-http-handler/package.json
+++ b/packages/fetch-http-handler/package.json
@@ -28,6 +28,6 @@
   "devDependencies": {
     "@aws-sdk/abort-controller": "1.0.0-gamma.5",
     "@types/jest": "^26.0.4",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/hash-blob-browser/package.json b/packages/hash-blob-browser/package.json
index 1026d6cd4377..9217a6d48dac 100644
--- a/packages/hash-blob-browser/package.json
+++ b/packages/hash-blob-browser/package.json
@@ -28,7 +28,7 @@
     "@aws-sdk/util-hex-encoding": "1.0.0-gamma.5",
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "react-native": {
     "@aws-sdk/chunked-blob-reader": "@aws-sdk/chunked-blob-reader-native"
diff --git a/packages/hash-node/package.json b/packages/hash-node/package.json
index 7ab4856e40c0..4a6eacef3e22 100644
--- a/packages/hash-node/package.json
+++ b/packages/hash-node/package.json
@@ -22,7 +22,7 @@
     "@types/node": "^10.0.0",
     "hash-test-vectors": "^1.3.2",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "dependencies": {
     "@aws-sdk/types": "1.0.0-gamma.4",
diff --git a/packages/hash-stream-node/package.json b/packages/hash-stream-node/package.json
index 7dfc27c05f6e..8147028f7b94 100644
--- a/packages/hash-stream-node/package.json
+++ b/packages/hash-stream-node/package.json
@@ -27,6 +27,6 @@
     "@types/jest": "^26.0.4",
     "@types/node": "^10.0.0",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/invalid-dependency/package.json b/packages/invalid-dependency/package.json
index e0e7c0b0ac97..2f8d4193b205 100644
--- a/packages/invalid-dependency/package.json
+++ b/packages/invalid-dependency/package.json
@@ -23,6 +23,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/is-array-buffer/package.json b/packages/is-array-buffer/package.json
index d78e3d0c32c1..210854fce9a9 100644
--- a/packages/is-array-buffer/package.json
+++ b/packages/is-array-buffer/package.json
@@ -20,7 +20,7 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "types": "./dist/cjs/index.d.ts",
   "dependencies": {
diff --git a/packages/karma-credential-loader/package.json b/packages/karma-credential-loader/package.json
index 84c0f0fe85e8..c59be557103d 100644
--- a/packages/karma-credential-loader/package.json
+++ b/packages/karma-credential-loader/package.json
@@ -25,6 +25,6 @@
     "@types/jest": "^26.0.4",
     "@types/node": "^10.0.0",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/md5-js/package.json b/packages/md5-js/package.json
index 6bffbce3e587..5d28fbf30c18 100644
--- a/packages/md5-js/package.json
+++ b/packages/md5-js/package.json
@@ -25,7 +25,7 @@
     "@types/node": "^10.0.0",
     "hash-test-vectors": "^1.3.2",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "dependencies": {
     "@aws-sdk/types": "1.0.0-gamma.4",
diff --git a/packages/middleware-apply-body-checksum/package.json b/packages/middleware-apply-body-checksum/package.json
index 983b2cf6c77b..fb552769577f 100644
--- a/packages/middleware-apply-body-checksum/package.json
+++ b/packages/middleware-apply-body-checksum/package.json
@@ -26,6 +26,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/middleware-bucket-endpoint/package.json b/packages/middleware-bucket-endpoint/package.json
index 8e64d73dfbff..1ee8486e8f61 100644
--- a/packages/middleware-bucket-endpoint/package.json
+++ b/packages/middleware-bucket-endpoint/package.json
@@ -28,6 +28,6 @@
     "@aws-sdk/node-config-provider": "1.0.0-gamma.0",
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/middleware-content-length/package.json b/packages/middleware-content-length/package.json
index 3a790277a2a5..63e451c1c0f3 100644
--- a/packages/middleware-content-length/package.json
+++ b/packages/middleware-content-length/package.json
@@ -25,6 +25,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/middleware-eventstream/package.json b/packages/middleware-eventstream/package.json
index 123ac7108df6..4dab18da18f2 100644
--- a/packages/middleware-eventstream/package.json
+++ b/packages/middleware-eventstream/package.json
@@ -25,6 +25,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/middleware-expect-continue/package.json b/packages/middleware-expect-continue/package.json
index 4a10121d3959..3a61e3acb016 100644
--- a/packages/middleware-expect-continue/package.json
+++ b/packages/middleware-expect-continue/package.json
@@ -26,6 +26,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/middleware-header-default/package.json b/packages/middleware-header-default/package.json
index 02fe6e11c601..c115112b3cb9 100644
--- a/packages/middleware-header-default/package.json
+++ b/packages/middleware-header-default/package.json
@@ -25,6 +25,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/middleware-host-header/package.json b/packages/middleware-host-header/package.json
index b46e26bb94f6..da9b838fff32 100644
--- a/packages/middleware-host-header/package.json
+++ b/packages/middleware-host-header/package.json
@@ -25,6 +25,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/middleware-location-constraint/package.json b/packages/middleware-location-constraint/package.json
index 8d451850111b..0ecd1a859735 100644
--- a/packages/middleware-location-constraint/package.json
+++ b/packages/middleware-location-constraint/package.json
@@ -24,6 +24,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/middleware-retry/package.json b/packages/middleware-retry/package.json
index ff5784fa485f..0c382fd6e444 100644
--- a/packages/middleware-retry/package.json
+++ b/packages/middleware-retry/package.json
@@ -30,6 +30,6 @@
     "@aws-sdk/node-config-provider": "1.0.0-gamma.0",
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/middleware-sdk-api-gateway/package.json b/packages/middleware-sdk-api-gateway/package.json
index 7dd7b0c6ac9b..042117ec3e79 100644
--- a/packages/middleware-sdk-api-gateway/package.json
+++ b/packages/middleware-sdk-api-gateway/package.json
@@ -25,6 +25,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/middleware-sdk-ec2/package.json b/packages/middleware-sdk-ec2/package.json
index 8a2a55994557..1a79941dc23c 100644
--- a/packages/middleware-sdk-ec2/package.json
+++ b/packages/middleware-sdk-ec2/package.json
@@ -27,6 +27,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/middleware-sdk-glacier/package.json b/packages/middleware-sdk-glacier/package.json
index bade4bc836e8..e577bff5078b 100644
--- a/packages/middleware-sdk-glacier/package.json
+++ b/packages/middleware-sdk-glacier/package.json
@@ -25,6 +25,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/middleware-sdk-machinelearning/package.json b/packages/middleware-sdk-machinelearning/package.json
index b53afb7718c2..e1615d895b0a 100644
--- a/packages/middleware-sdk-machinelearning/package.json
+++ b/packages/middleware-sdk-machinelearning/package.json
@@ -25,6 +25,6 @@
     "@aws-sdk/types": "1.0.0-gamma.4",
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/middleware-sdk-rds/package.json b/packages/middleware-sdk-rds/package.json
index dd5d4a514fa6..0a49e67e27db 100644
--- a/packages/middleware-sdk-rds/package.json
+++ b/packages/middleware-sdk-rds/package.json
@@ -28,6 +28,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/middleware-sdk-route53/package.json b/packages/middleware-sdk-route53/package.json
index 4de0edb72ef8..709a570d1239 100644
--- a/packages/middleware-sdk-route53/package.json
+++ b/packages/middleware-sdk-route53/package.json
@@ -24,6 +24,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/middleware-sdk-s3-control/package.json b/packages/middleware-sdk-s3-control/package.json
index 5f767a2680da..9a5a8e14b6e2 100644
--- a/packages/middleware-sdk-s3-control/package.json
+++ b/packages/middleware-sdk-s3-control/package.json
@@ -25,6 +25,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/middleware-sdk-s3/package.json b/packages/middleware-sdk-s3/package.json
index 3ce9ab511d80..20ac9b81f5b8 100644
--- a/packages/middleware-sdk-s3/package.json
+++ b/packages/middleware-sdk-s3/package.json
@@ -25,6 +25,6 @@
     "@aws-sdk/types": "1.0.0-gamma.4",
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/middleware-sdk-sqs/package.json b/packages/middleware-sdk-sqs/package.json
index 499f9c82722e..b06629a55679 100644
--- a/packages/middleware-sdk-sqs/package.json
+++ b/packages/middleware-sdk-sqs/package.json
@@ -25,6 +25,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/middleware-sdk-transcribe-streaming/package.json b/packages/middleware-sdk-transcribe-streaming/package.json
index df6c7f7cc64a..55544dc87075 100644
--- a/packages/middleware-sdk-transcribe-streaming/package.json
+++ b/packages/middleware-sdk-transcribe-streaming/package.json
@@ -33,6 +33,6 @@
     "jest": "^26.1.0",
     "jest-websocket-mock": "^2.0.2",
     "mock-socket": "^9.0.3",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/middleware-serde/package.json b/packages/middleware-serde/package.json
index 06f8384e4b0d..2fa4e95dcda0 100644
--- a/packages/middleware-serde/package.json
+++ b/packages/middleware-serde/package.json
@@ -24,6 +24,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/middleware-signing/package.json b/packages/middleware-signing/package.json
index a991687a708d..7b33539ba0e9 100644
--- a/packages/middleware-signing/package.json
+++ b/packages/middleware-signing/package.json
@@ -20,7 +20,7 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "dependencies": {
     "@aws-sdk/protocol-http": "1.0.0-gamma.5",
diff --git a/packages/middleware-ssec/package.json b/packages/middleware-ssec/package.json
index ed358e3cbbbd..6addf79d509f 100644
--- a/packages/middleware-ssec/package.json
+++ b/packages/middleware-ssec/package.json
@@ -24,6 +24,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/middleware-stack/package.json b/packages/middleware-stack/package.json
index b6ad85404539..5d2244992dc6 100644
--- a/packages/middleware-stack/package.json
+++ b/packages/middleware-stack/package.json
@@ -26,6 +26,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/middleware-user-agent/package.json b/packages/middleware-user-agent/package.json
index 8b75ba0bbcad..6a5e3604ae1a 100644
--- a/packages/middleware-user-agent/package.json
+++ b/packages/middleware-user-agent/package.json
@@ -25,6 +25,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/node-config-provider/package.json b/packages/node-config-provider/package.json
index d3737326aa60..ec06017ccc63 100644
--- a/packages/node-config-provider/package.json
+++ b/packages/node-config-provider/package.json
@@ -29,6 +29,6 @@
     "@types/jest": "^26.0.4",
     "@types/node": "^10.0.0",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/node-http-handler/package.json b/packages/node-http-handler/package.json
index b33e331f88af..d03c8aed8fd0 100644
--- a/packages/node-http-handler/package.json
+++ b/packages/node-http-handler/package.json
@@ -30,7 +30,7 @@
     "@types/jest": "^26.0.4",
     "@types/node": "^10.0.0",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "jest": {
     "coveragePathIgnorePatterns": [
diff --git a/packages/property-provider/package.json b/packages/property-provider/package.json
index cd9504412ce7..b25f468269a8 100644
--- a/packages/property-provider/package.json
+++ b/packages/property-provider/package.json
@@ -24,6 +24,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/protocol-http/package.json b/packages/protocol-http/package.json
index 7ccf6915565b..45215768326e 100644
--- a/packages/protocol-http/package.json
+++ b/packages/protocol-http/package.json
@@ -25,6 +25,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/querystring-builder/package.json b/packages/querystring-builder/package.json
index 4615c6a39635..26baac0567d9 100644
--- a/packages/querystring-builder/package.json
+++ b/packages/querystring-builder/package.json
@@ -25,6 +25,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/querystring-parser/package.json b/packages/querystring-parser/package.json
index 34155263867c..7078c18df97e 100644
--- a/packages/querystring-parser/package.json
+++ b/packages/querystring-parser/package.json
@@ -24,6 +24,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/s3-request-presigner/package.json b/packages/s3-request-presigner/package.json
index 71d023cd35eb..e341a1aff94a 100644
--- a/packages/s3-request-presigner/package.json
+++ b/packages/s3-request-presigner/package.json
@@ -30,6 +30,6 @@
     "@types/jest": "^26.0.4",
     "@types/node": "^12.0.2",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/service-error-classification/package.json b/packages/service-error-classification/package.json
index 25ace86ccabe..d809fa8511a8 100644
--- a/packages/service-error-classification/package.json
+++ b/packages/service-error-classification/package.json
@@ -21,6 +21,6 @@
     "@aws-sdk/smithy-client": "1.0.0-gamma.5",
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/sha256-tree-hash/package.json b/packages/sha256-tree-hash/package.json
index 7ec3d6e75bfd..7f6fd73648a7 100644
--- a/packages/sha256-tree-hash/package.json
+++ b/packages/sha256-tree-hash/package.json
@@ -27,6 +27,6 @@
     "@aws-sdk/util-utf8-node": "1.0.0-gamma.5",
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/shared-ini-file-loader/package.json b/packages/shared-ini-file-loader/package.json
index 8f5f23a1000e..cd584231b762 100644
--- a/packages/shared-ini-file-loader/package.json
+++ b/packages/shared-ini-file-loader/package.json
@@ -8,7 +8,7 @@
     "@types/jest": "^26.0.4",
     "@types/node": "^10.0.0",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "scripts": {
     "prepublishOnly": "yarn build:cjs && yarn build:es",
diff --git a/packages/signature-v4/package.json b/packages/signature-v4/package.json
index 05636fcb704f..46c9ed50dcdc 100644
--- a/packages/signature-v4/package.json
+++ b/packages/signature-v4/package.json
@@ -31,6 +31,6 @@
     "@aws-sdk/util-buffer-from": "1.0.0-gamma.5",
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/smithy-client/package.json b/packages/smithy-client/package.json
index 4e0cf48efa9d..0c9b825d8afb 100644
--- a/packages/smithy-client/package.json
+++ b/packages/smithy-client/package.json
@@ -25,6 +25,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/types/package.json b/packages/types/package.json
index d66f59dce24a..bff5453ea7f2 100755
--- a/packages/types/package.json
+++ b/packages/types/package.json
@@ -6,7 +6,7 @@
   "types": "./dist/cjs/index.d.ts",
   "description": "Types for the AWS SDK",
   "devDependencies": {
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "scripts": {
     "prepublishOnly": "yarn build:cjs && yarn build:es",
diff --git a/packages/url-parser-browser/package.json b/packages/url-parser-browser/package.json
index 3f7642d05270..c7598062e434 100644
--- a/packages/url-parser-browser/package.json
+++ b/packages/url-parser-browser/package.json
@@ -25,6 +25,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/url-parser-node/package.json b/packages/url-parser-node/package.json
index 755d72139aef..dc245c44e154 100644
--- a/packages/url-parser-node/package.json
+++ b/packages/url-parser-node/package.json
@@ -27,7 +27,7 @@
     "@types/jest": "^26.0.4",
     "@types/node": "^10.0.0",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "react-native": {
     "url": "url/"
diff --git a/packages/util-arn-parser/package.json b/packages/util-arn-parser/package.json
index 422c36812297..95784fdbf8b6 100644
--- a/packages/util-arn-parser/package.json
+++ b/packages/util-arn-parser/package.json
@@ -24,7 +24,7 @@
     "@types/jest": "^26.0.4",
     "@types/node": "^10.0.0",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "types": "./dist/cjs/index.d.ts"
 }
diff --git a/packages/util-base64-browser/package.json b/packages/util-base64-browser/package.json
index 03fd1f2e8524..238cd76b789c 100644
--- a/packages/util-base64-browser/package.json
+++ b/packages/util-base64-browser/package.json
@@ -24,7 +24,7 @@
     "@types/jest": "^26.0.4",
     "@types/node": "^10.0.0",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "types": "./dist/cjs/index.d.ts"
 }
diff --git a/packages/util-base64-node/package.json b/packages/util-base64-node/package.json
index b3da70f5570f..52517dd6559c 100644
--- a/packages/util-base64-node/package.json
+++ b/packages/util-base64-node/package.json
@@ -25,7 +25,7 @@
     "@types/jest": "^26.0.4",
     "@types/node": "^10.0.0",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "types": "./dist/cjs/index.d.ts"
 }
diff --git a/packages/util-body-length-browser/package.json b/packages/util-body-length-browser/package.json
index a587679d5907..a434acafed81 100644
--- a/packages/util-body-length-browser/package.json
+++ b/packages/util-body-length-browser/package.json
@@ -24,6 +24,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/util-body-length-node/package.json b/packages/util-body-length-node/package.json
index 6e30d612b0ee..b20468e42454 100644
--- a/packages/util-body-length-node/package.json
+++ b/packages/util-body-length-node/package.json
@@ -14,7 +14,7 @@
     "@types/jest": "^26.0.4",
     "@types/node": "^10.0.0",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "main": "./dist/cjs/index.js",
   "module": "./dist/es/index.js",
diff --git a/packages/util-buffer-from/package.json b/packages/util-buffer-from/package.json
index c7922cd9cf8b..3dfac998f736 100644
--- a/packages/util-buffer-from/package.json
+++ b/packages/util-buffer-from/package.json
@@ -22,7 +22,7 @@
     "@types/jest": "^26.0.4",
     "@types/node": "^10.0.0",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "main": "./dist/cjs/index.js",
   "module": "./dist/es/index.js",
diff --git a/packages/util-buffer-from/src/index.spec.ts b/packages/util-buffer-from/src/index.spec.ts
index d13dcc6b83b2..1bdbb204f9e9 100644
--- a/packages/util-buffer-from/src/index.spec.ts
+++ b/packages/util-buffer-from/src/index.spec.ts
@@ -40,6 +40,7 @@ describe("fromArrayBuffer", () => {
 
     beforeEach(() => {
       (Buffer as any).mockClear();
+      // @ts-ignore TODO: remove support as v3 is going to support Node.js v10+
       delete Buffer.from;
     });
 
@@ -116,6 +117,7 @@ describe("fromString", () => {
 
     beforeEach(() => {
       (Buffer as any).mockClear();
+      // @ts-ignore TODO: remove support as v3 is going to support Node.js v10+
       delete Buffer.from;
     });
 
diff --git a/packages/util-create-request/package.json b/packages/util-create-request/package.json
index 6b910ec027f3..f82ff00c62b1 100644
--- a/packages/util-create-request/package.json
+++ b/packages/util-create-request/package.json
@@ -28,6 +28,6 @@
     "@types/jest": "^26.0.4",
     "@types/node": "^10.0.3",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/util-create-request/src/foo.fixture.ts b/packages/util-create-request/src/foo.fixture.ts
index 8361f7b86ac9..a57bd373c484 100644
--- a/packages/util-create-request/src/foo.fixture.ts
+++ b/packages/util-create-request/src/foo.fixture.ts
@@ -24,7 +24,7 @@ export const fooClient: Client<any, InputTypesUnion, OutputTypesUnion, any> = {
   config: {},
   middlewareStack: constructStack<InputTypesUnion, OutputTypesUnion>(),
   send: (command: Command<InputTypesUnion, OutputTypesUnion, any, OperationInput, OperationOutput>) =>
-    command.resolveMiddleware(this.middlewareStack, this.config, undefined)({ input }),
+    command.resolveMiddleware(fooClient.middlewareStack, fooClient.config, undefined)({ input }),
   destroy: () => {},
 };
 
diff --git a/packages/util-format-url/package.json b/packages/util-format-url/package.json
index 0905ae2ac780..adfb864de38f 100644
--- a/packages/util-format-url/package.json
+++ b/packages/util-format-url/package.json
@@ -25,6 +25,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/util-hex-encoding/package.json b/packages/util-hex-encoding/package.json
index 478659d1ec48..1013763ddda8 100644
--- a/packages/util-hex-encoding/package.json
+++ b/packages/util-hex-encoding/package.json
@@ -23,7 +23,7 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "types": "./dist/cjs/index.d.ts"
 }
diff --git a/packages/util-locate-window/package.json b/packages/util-locate-window/package.json
index cbcf751c0eca..d60b60dc05a5 100644
--- a/packages/util-locate-window/package.json
+++ b/packages/util-locate-window/package.json
@@ -21,7 +21,7 @@
     "@types/jest": "^26.0.4",
     "@types/node": "^10.0.0",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "main": "./dist/cjs/index.js",
   "module": "./dist/es/index.js",
diff --git a/packages/util-uri-escape/package.json b/packages/util-uri-escape/package.json
index 17110763df3d..71cd96d6a075 100644
--- a/packages/util-uri-escape/package.json
+++ b/packages/util-uri-escape/package.json
@@ -23,6 +23,6 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/util-user-agent-browser/package.json b/packages/util-user-agent-browser/package.json
index dac78b11ca57..b1c2810df44d 100644
--- a/packages/util-user-agent-browser/package.json
+++ b/packages/util-user-agent-browser/package.json
@@ -25,6 +25,6 @@
     "@aws-sdk/protocol-http": "1.0.0-gamma.5",
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/util-user-agent-node/package.json b/packages/util-user-agent-node/package.json
index 68a10e785237..dab003bb746c 100644
--- a/packages/util-user-agent-node/package.json
+++ b/packages/util-user-agent-node/package.json
@@ -26,6 +26,6 @@
     "@types/jest": "^26.0.4",
     "@types/node": "^10.0.0",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   }
 }
diff --git a/packages/util-utf8-browser/package.json b/packages/util-utf8-browser/package.json
index 22c4e53817e7..28d2e36f814a 100644
--- a/packages/util-utf8-browser/package.json
+++ b/packages/util-utf8-browser/package.json
@@ -23,7 +23,7 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "types": "./dist/cjs/index.d.ts"
 }
diff --git a/packages/util-utf8-node/package.json b/packages/util-utf8-node/package.json
index 9b17fa7b6173..2f4d79abf4c1 100644
--- a/packages/util-utf8-node/package.json
+++ b/packages/util-utf8-node/package.json
@@ -25,7 +25,7 @@
     "@types/jest": "^26.0.4",
     "@types/node": "^10.0.0",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "jest": {
     "testEnvironment": "node"
diff --git a/packages/xml-builder/package.json b/packages/xml-builder/package.json
index 4e28a741eda0..e33e08564376 100644
--- a/packages/xml-builder/package.json
+++ b/packages/xml-builder/package.json
@@ -8,7 +8,7 @@
   "devDependencies": {
     "@types/jest": "^26.0.4",
     "jest": "^26.1.0",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "scripts": {
     "prepublishOnly": "yarn build:cjs && yarn build:es",
diff --git a/protocol_tests/aws-ec2/package.json b/protocol_tests/aws-ec2/package.json
index 9e9f0898d0e9..db9efc9dd1ff 100644
--- a/protocol_tests/aws-ec2/package.json
+++ b/protocol_tests/aws-ec2/package.json
@@ -66,7 +66,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/protocol_tests/aws-json/package.json b/protocol_tests/aws-json/package.json
index f6ac985a63ff..16a8be539225 100644
--- a/protocol_tests/aws-json/package.json
+++ b/protocol_tests/aws-json/package.json
@@ -65,7 +65,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/protocol_tests/aws-query/package.json b/protocol_tests/aws-query/package.json
index 0889d08be219..fda9222563ea 100644
--- a/protocol_tests/aws-query/package.json
+++ b/protocol_tests/aws-query/package.json
@@ -66,7 +66,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/protocol_tests/aws-restjson/package.json b/protocol_tests/aws-restjson/package.json
index c9c71bb56167..9e909856c8a0 100644
--- a/protocol_tests/aws-restjson/package.json
+++ b/protocol_tests/aws-restjson/package.json
@@ -66,7 +66,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/protocol_tests/aws-restxml/package.json b/protocol_tests/aws-restxml/package.json
index 9b213677c8a8..9b267e46944e 100644
--- a/protocol_tests/aws-restxml/package.json
+++ b/protocol_tests/aws-restxml/package.json
@@ -68,7 +68,7 @@
     "jest": "^26.1.0",
     "rimraf": "^3.0.0",
     "typedoc": "^0.17.8",
-    "typescript": "~3.9.3"
+    "typescript": "~4.0.2"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/yarn.lock b/yarn.lock
index 3c17e53ed30c..9602c2d57a90 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -11664,10 +11664,10 @@ typedoc@^0.17.8:
     shelljs "^0.8.4"
     typedoc-default-themes "^0.10.2"
 
-typescript@~3.9.3:
-  version "3.9.6"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.6.tgz#8f3e0198a34c3ae17091b35571d3afd31999365a"
-  integrity sha512-Pspx3oKAPJtjNwE92YS05HQoY7z2SFyOpHo9MqJor3BXAGNaPUs83CuVp9VISFkSjyRfiTpmKuAYGJB7S7hOxw==
+typescript@~4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.0.2.tgz#7ea7c88777c723c681e33bf7988be5d008d05ac2"
+  integrity sha512-e4ERvRV2wb+rRZ/IQeb3jm2VxBsirQLpQhdxplZ2MEzGvDkkMmPglecnNDfSUBivMjP93vRbngYYDQqQ/78bcQ==
 
 ua-parser-js@0.7.21:
   version "0.7.21"