diff --git a/build.gradle.kts b/build.gradle.kts
index 108925510e9..53fbe6ecb4d 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -14,7 +14,7 @@ buildscript {
         classpath(libs.kotlinx.atomicfu.plugin)
         classpath("aws.sdk.kotlin:build-plugins") {
             version {
-                require("0.2.5")
+                require("0.2.7")
             }
         }
     }
diff --git a/codegen/smithy-aws-kotlin-codegen/src/test/kotlin/aws/sdk/kotlin/codegen/EndpointUrlConfigNamesTest.kt b/codegen/smithy-aws-kotlin-codegen/src/test/kotlin/aws/sdk/kotlin/codegen/EndpointUrlConfigNamesTest.kt
index b47dda5934e..451635cfdb2 100644
--- a/codegen/smithy-aws-kotlin-codegen/src/test/kotlin/aws/sdk/kotlin/codegen/EndpointUrlConfigNamesTest.kt
+++ b/codegen/smithy-aws-kotlin-codegen/src/test/kotlin/aws/sdk/kotlin/codegen/EndpointUrlConfigNamesTest.kt
@@ -1742,7 +1742,7 @@ private const val javaClientNamesJson = """
   "ServerlessApplicationRepository": "ServerlessApplicationRepositoryClient",
   "CodeStar connections": "CodeStarConnectionsClient",
   "Pinpoint SMS Voice V2": "PinpointSmsVoiceV2Client",
-  "IoTSiteWise": "IoTSiteWiseClient",
+  "IoTSiteWise": "IotSiteWiseClient",
   "ivs": "IvsClient",
   "InternetMonitor": "InternetMonitorClient",
   "mq": "MqClient",
@@ -1897,8 +1897,8 @@ private const val javaClientNamesJson = """
   "AccessAnalyzer": "AccessAnalyzerClient",
   "Route53 Recovery Readiness": "Route53RecoveryReadinessClient",
   "ComprehendMedical": "ComprehendMedicalClient",
-  "IoTThingsGraph": "IoTThingsGraphClient",
-  "IoTFleetWise": "IoTFleetWiseClient",
+  "IoTThingsGraph": "IotThingsGraphClient",
+  "IoTFleetWise": "IotFleetWiseClient",
   "RUM": "RumClient",
   "OpenSearch": "OpenSearchClient",
   "EC2 Instance Connect": "Ec2InstanceConnectClient",
@@ -1906,7 +1906,7 @@ private const val javaClientNamesJson = """
   "CloudFront": "CloudFrontClient",
   "WAFV2": "Wafv2Client",
   "Cost Explorer": "CostExplorerClient",
-  "IoTSecureTunneling": "IoTSecureTunnelingClient",
+  "IoTSecureTunneling": "IotSecureTunnelingClient",
   "Kinesis Analytics V2": "KinesisAnalyticsV2Client",
   "CodeCatalyst": "CodeCatalystClient",
   "RDS Data": "RdsDataClient",
@@ -1935,7 +1935,7 @@ private const val javaClientNamesJson = """
   "Config Service": "ConfigClient",
   "GroundStation": "GroundStationClient",
   "Inspector2": "Inspector2Client",
-  "IoTAnalytics": "IoTAnalyticsClient",
+  "IoTAnalytics": "IotAnalyticsClient",
   "SageMaker A2I Runtime": "SageMakerA2IRuntimeClient",
   "neptunedata": "NeptunedataClient",
   "Pinpoint Email": "PinpointEmailClient",
@@ -1950,7 +1950,7 @@ private const val javaClientNamesJson = """
   "WorkDocs": "WorkDocsClient",
   "NetworkManager": "NetworkManagerClient",
   "Omics": "OmicsClient",
-  "IoTFleetHub": "IoTFleetHubClient",
+  "IoTFleetHub": "IotFleetHubClient",
   "Cognito Sync": "CognitoSyncClient",
   "Outposts": "OutpostsClient",
   "BackupStorage": "BackupStorageClient",
@@ -1999,7 +1999,7 @@ private const val javaClientNamesJson = """
   "Timestream Write": "TimestreamWriteClient",
   "CodeBuild": "CodeBuildClient",
   "DocDB Elastic": "DocDbElasticClient",
-  "IoTTwinMaker": "IoTTwinMakerClient",
+  "IoTTwinMaker": "IotTwinMakerClient",
   "IotDeviceAdvisor": "IotDeviceAdvisorClient",
   "License Manager Linux Subscriptions": "LicenseManagerLinuxSubscriptionsClient",
   "forecast": "ForecastClient",
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 8e9780d14ba..c05ca2e1c96 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -7,7 +7,7 @@ coroutines-version = "1.7.3"
 atomicfu-version = "0.22.0"
 
 # smithy-kotlin codegen and runtime are versioned together
-smithy-kotlin-version = "0.27.8-SNAPSHOT"
+smithy-kotlin-version = "0.28.0-SNAPSHOT"
 
 # codegen
 smithy-version = "1.39.0"