diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 82ed6e1d..34ad17af 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -57,6 +57,7 @@ jobs:
 
       - name: Upload release asset
         uses: actions/upload-release-asset@v1
+        if: startsWith( github.ref, 'refs/tags/' )
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with: