diff --git a/packages/aws-cdk-lib/region-info/build-tools/fact-tables.ts b/packages/aws-cdk-lib/region-info/build-tools/fact-tables.ts
index 880b185f6ba4b..395fea1fbe55c 100644
--- a/packages/aws-cdk-lib/region-info/build-tools/fact-tables.ts
+++ b/packages/aws-cdk-lib/region-info/build-tools/fact-tables.ts
@@ -17,6 +17,7 @@ export const ROUTE_53_BUCKET_WEBSITE_ZONE_IDS: { [region: string]: string } = {
   'ap-southeast-3': 'Z01846753K324LI26A3VV',
   'ap-southeast-4': 'Z0312387243XT5FE14WFO',
   'ap-southeast-5': 'Z08660063OXLMA7F1FJHU',
+  'ap-southeast-7': 'Z0031014GXUMRZG6I14G',
   'ca-central-1': 'Z1QDHH18159H29',
   'cn-north-1': 'Z5CN8UMXT92WN',
   'cn-northwest-1': 'Z282HJ1KT0DH03',
@@ -526,6 +527,7 @@ export const CLOUDWATCH_LAMBDA_INSIGHTS_ARNS: { [key: string]: any } = {
       'ap-southeast-3': 'arn:aws:lambda:ap-southeast-3:439286490199:layer:LambdaInsightsExtension:32',
       'ap-southeast-5': 'arn:aws:lambda:ap-southeast-5:590183865173:layer:LambdaInsightsExtension:3',
       'ap-southeast-4': 'arn:aws:lambda:ap-southeast-4:158895979263:layer:LambdaInsightsExtension:23',
+      'ap-southeast-7': 'arn:aws:lambda:ap-southeast-7:761018874580:layer:LambdaInsightsExtension:2',
       'ap-south-1': 'arn:aws:lambda:ap-south-1:580247275435:layer:LambdaInsightsExtension:53',
       'ap-northeast-3': 'arn:aws:lambda:ap-northeast-3:194566237122:layer:LambdaInsightsExtension:36',
       'ap-northeast-2': 'arn:aws:lambda:ap-northeast-2:580247275435:layer:LambdaInsightsExtension:54',
diff --git a/packages/aws-cdk-lib/region-info/test/__snapshots__/region-info.test.ts.snap b/packages/aws-cdk-lib/region-info/test/__snapshots__/region-info.test.ts.snap
index 0070c8390c4f1..069000fc9c4cf 100644
--- a/packages/aws-cdk-lib/region-info/test/__snapshots__/region-info.test.ts.snap
+++ b/packages/aws-cdk-lib/region-info/test/__snapshots__/region-info.test.ts.snap
@@ -678,7 +678,7 @@ exports[`built-in data is correct 1`] = `
       "1.0.295.0": undefined,
       "1.0.317.0": undefined,
       "1.0.333.0": undefined,
-      "1.0.391.0": undefined,
+      "1.0.391.0": "arn:aws:lambda:ap-southeast-7:761018874580:layer:LambdaInsightsExtension:2",
       "1.0.54.0": undefined,
       "1.0.86.0": undefined,
       "1.0.89.0": undefined,