diff --git a/.github/workflows/github-actions-builddockerfile.yml b/.github/workflows/github-actions-builddockerfile.yml
index 6cccc89..2f3a1e0 100644
--- a/.github/workflows/github-actions-builddockerfile.yml
+++ b/.github/workflows/github-actions-builddockerfile.yml
@@ -23,7 +23,7 @@ jobs:
         id: setcalver
         with:
           default_branch: 'refs/heads/main'
-          format: 'YY.M.D'
+          format: 'YYYY.M.D'
           version_prefix: ''
       - name: Update version file
         run: |