diff --git a/.gitea/workflows/build-image.yaml b/.gitea/workflows/build-image.yaml
index 3de15228b..e04a84a34 100644
--- a/.gitea/workflows/build-image.yaml
+++ b/.gitea/workflows/build-image.yaml
@@ -29,7 +29,7 @@ jobs:
         id: meta
         run: |
           SHA9=$(git rev-parse --short=9 HEAD)
-          echo "tag=${{ github.ref_name }}-${SHA9}-$(date +%Y%m%d-%H%M)" >> "$GITHUB_OUTPUT"
+          echo "tag=${{ github.ref_name }}-${SHA9}-ci-$(date -u +%Y%m%d-%H%M)" >> "$GITHUB_OUTPUT"
 
       - uses: docker/setup-buildx-action@v3