diff --git a/source/common/changes/@awssolutions/cdf-device-monitoring/fix_device_monitoring_lambda_memory_2024-02-08-20-41.json b/source/common/changes/@awssolutions/cdf-device-monitoring/fix_device_monitoring_lambda_memory_2024-02-08-20-41.json
new file mode 100644
index 000000000..74e715407
--- /dev/null
+++ b/source/common/changes/@awssolutions/cdf-device-monitoring/fix_device_monitoring_lambda_memory_2024-02-08-20-41.json
@@ -0,0 +1,10 @@
+{
+  "changes": [
+    {
+      "packageName": "@awssolutions/cdf-device-monitoring",
+      "comment": "increased lambda function size to 512MB",
+      "type": "none"
+    }
+  ],
+  "packageName": "@awssolutions/cdf-device-monitoring"
+}
\ No newline at end of file
diff --git a/source/packages/services/device-monitoring/infrastructure/cfn-device-monitoring.yml b/source/packages/services/device-monitoring/infrastructure/cfn-device-monitoring.yml
index d1c355c9a..74f137c2c 100644
--- a/source/packages/services/device-monitoring/infrastructure/cfn-device-monitoring.yml
+++ b/source/packages/services/device-monitoring/infrastructure/cfn-device-monitoring.yml
@@ -110,7 +110,7 @@ Resources:
       FunctionName: !Sub 'cdf-deviceMonitoring-${Environment}'
       CodeUri: ../bundle.zip
       Handler: iot_lifecycle_event.lambda_handler
-      MemorySize: 128
+      MemorySize: 512
       Role: !GetAtt IoTLifecycleLambdaRole.Arn
       Runtime: nodejs18.x
       Timeout: 29