diff --git a/codegen/smithy-aws-go-codegen/src/main/resources/software/amazon/smithy/aws/go/codegen/endpoints.json b/codegen/smithy-aws-go-codegen/src/main/resources/software/amazon/smithy/aws/go/codegen/endpoints.json
index 8e8197e16f5..6b423320729 100644
--- a/codegen/smithy-aws-go-codegen/src/main/resources/software/amazon/smithy/aws/go/codegen/endpoints.json
+++ b/codegen/smithy-aws-go-codegen/src/main/resources/software/amazon/smithy/aws/go/codegen/endpoints.json
@@ -13780,6 +13780,7 @@
           "ap-southeast-2" : { },
           "ap-southeast-3" : { },
           "ap-southeast-4" : { },
+          "ap-southeast-5" : { },
           "ca-central-1" : { },
           "ca-west-1" : { },
           "eu-central-1" : { },