diff --git a/.github/workflows/post_release_version_bump.yml b/.github/workflows/post_release_version_bump.yml
index 6749b35..970ba52 100644
--- a/.github/workflows/post_release_version_bump.yml
+++ b/.github/workflows/post_release_version_bump.yml
@@ -7,6 +7,9 @@ on:
         description: 'Version number (e.g., 1.0.1)'
         required: true
 
+env:
+  AWS_DEFAULT_REGION: us-east-1
+
 permissions:
   contents: write
   pull-requests: write