diff --git a/manifest.json b/manifest.json
index 9de641c1c..69f23e161 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,6 +1,6 @@
 {
     "variables": {
-        "${LATEST}": "3.370.1"
+        "${LATEST}": "3.371.1"
     },
     "endpoints": "https://raw.githubusercontent.com/aws/aws-sdk-php/${LATEST}/src/data/endpoints.json",
     "services": {
diff --git a/src/Service/MediaConvert/CHANGELOG.md b/src/Service/MediaConvert/CHANGELOG.md
index 2f2499ecf..0f63a29a0 100644
--- a/src/Service/MediaConvert/CHANGELOG.md
+++ b/src/Service/MediaConvert/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## NOT RELEASED
 
+### Added
+
+- AWS api-change: Rework endpoints resolution.
+
 ## 1.13.0
 
 ### Added
diff --git a/src/Service/MediaConvert/composer.json b/src/Service/MediaConvert/composer.json
index 5328f1c99..28bb13bed 100644
--- a/src/Service/MediaConvert/composer.json
+++ b/src/Service/MediaConvert/composer.json
@@ -32,7 +32,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "1.13-dev"
+            "dev-master": "1.14-dev"
         }
     }
 }
diff --git a/src/Service/MediaConvert/src/MediaConvertClient.php b/src/Service/MediaConvert/src/MediaConvertClient.php
index 3dfeeede7..b374e413f 100644
--- a/src/Service/MediaConvert/src/MediaConvertClient.php
+++ b/src/Service/MediaConvert/src/MediaConvertClient.php
@@ -6,7 +6,6 @@
 use AsyncAws\Core\AwsError\AwsErrorFactoryInterface;
 use AsyncAws\Core\AwsError\JsonRestAwsErrorFactory;
 use AsyncAws\Core\Configuration;
-use AsyncAws\Core\Exception\UnsupportedRegion;
 use AsyncAws\Core\RequestContext;
 use AsyncAws\MediaConvert\Enum\BillingTagsSource;
 use AsyncAws\MediaConvert\Enum\DescribeEndpointsMode;
@@ -251,32 +250,6 @@ protected function getEndpointMetadata(?string $region): array
         }
 
         switch ($region) {
-            case 'af-south-1':
-            case 'ap-northeast-1':
-            case 'ap-northeast-2':
-            case 'ap-northeast-3':
-            case 'ap-south-1':
-            case 'ap-southeast-1':
-            case 'ap-southeast-2':
-            case 'ap-southeast-4':
-            case 'ca-central-1':
-            case 'eu-central-1':
-            case 'eu-north-1':
-            case 'eu-west-1':
-            case 'eu-west-2':
-            case 'eu-west-3':
-            case 'me-central-1':
-            case 'sa-east-1':
-            case 'us-east-1':
-            case 'us-east-2':
-            case 'us-west-1':
-            case 'us-west-2':
-                return [
-                    'endpoint' => "https://mediaconvert.$region.amazonaws.com",
-                    'signRegion' => $region,
-                    'signService' => 'mediaconvert',
-                    'signVersions' => ['v4'],
-                ];
             case 'cn-northwest-1':
                 return [
                     'endpoint' => 'https://mediaconvert.cn-northwest-1.amazonaws.com.cn',
@@ -320,7 +293,6 @@ protected function getEndpointMetadata(?string $region): array
                     'signVersions' => ['v4'],
                 ];
             case 'fips-us-gov-west-1':
-            case 'us-gov-west-1':
                 return [
                     'endpoint' => 'https://mediaconvert.us-gov-west-1.amazonaws.com',
                     'signRegion' => 'us-gov-west-1',
@@ -329,6 +301,11 @@ protected function getEndpointMetadata(?string $region): array
                 ];
         }
 
-        throw new UnsupportedRegion(\sprintf('The region "%s" is not supported by "MediaConvert".', $region));
+        return [
+            'endpoint' => "https://mediaconvert.$region.amazonaws.com",
+            'signRegion' => $region,
+            'signService' => 'mediaconvert',
+            'signVersions' => ['v4'],
+        ];
     }
 }