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 923a7967ec0..8af3a9bc2bb 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
@@ -12055,6 +12055,7 @@
         "endpoints" : {
           "ap-northeast-1" : { },
           "ap-northeast-2" : { },
+          "ap-south-1" : { },
           "ap-southeast-1" : { },
           "ap-southeast-2" : { },
           "ca-central-1" : { },
@@ -20769,11 +20770,18 @@
       },
       "participant.connect" : {
         "endpoints" : {
-          "us-gov-west-1" : {
+          "fips-us-gov-west-1" : {
             "credentialScope" : {
               "region" : "us-gov-west-1"
             },
+            "deprecated" : true,
             "hostname" : "participant.connect.us-gov-west-1.amazonaws.com"
+          },
+          "us-gov-west-1" : {
+            "variants" : [ {
+              "hostname" : "participant.connect.us-gov-west-1.amazonaws.com",
+              "tags" : [ "fips" ]
+            } ]
           }
         }
       },