diff --git a/codegen/smithy-aws-typescript-codegen/src/main/resources/software/amazon/smithy/aws/typescript/codegen/endpoints.json b/codegen/smithy-aws-typescript-codegen/src/main/resources/software/amazon/smithy/aws/typescript/codegen/endpoints.json
index a64fd3841700..c061ed400c07 100644
--- a/codegen/smithy-aws-typescript-codegen/src/main/resources/software/amazon/smithy/aws/typescript/codegen/endpoints.json
+++ b/codegen/smithy-aws-typescript-codegen/src/main/resources/software/amazon/smithy/aws/typescript/codegen/endpoints.json
@@ -1147,6 +1147,7 @@
             "ap-southeast-1": {},
             "ap-southeast-2": {},
             "ap-southeast-3": {},
+            "ap-southeast-4": {},
             "ca-central-1": {},
             "eu-central-1": {},
             "eu-central-2": {},
@@ -9340,6 +9341,7 @@
             "ap-southeast-1": {},
             "ap-southeast-2": {},
             "ap-southeast-3": {},
+            "ap-southeast-4": {},
             "ca-central-1": {
               "variants": [
                 {
@@ -15295,6 +15297,7 @@
             "ap-southeast-1": {},
             "ap-southeast-2": {},
             "ap-southeast-3": {},
+            "ap-southeast-4": {},
             "ca-central-1": {},
             "eu-central-1": {},
             "eu-central-2": {},