diff --git a/.github/workflows/update_patterns.yml b/.github/workflows/update_patterns.yml
index 75d1bb2..9a26ec9 100644
--- a/.github/workflows/update_patterns.yml
+++ b/.github/workflows/update_patterns.yml
@@ -90,8 +90,8 @@ jobs:
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       with:
-        tag_name: v$(date +'%Y.%m.%d')
-        release_name: Release v$(date +'%Y.%m.%d')
+        tag_name: v$(date +'%Y-%m-%d')  # Use hyphens instead of dots for valid tag format
+        release_name: Release v$(date +'%Y-%m-%d')
         draft: false
         prerelease: false