diff --git a/.github/workflows/core.yml b/.github/workflows/core.yml
index f4c2096..602283a 100644
--- a/.github/workflows/core.yml
+++ b/.github/workflows/core.yml
@@ -21,6 +21,7 @@ jobs:
   pack:
     needs: test
     runs-on: ubuntu-latest
+    if: startsWith(github.ref, 'refs/tags/')
 
     steps:
     - uses: actions/checkout@master