diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 9919139..2a81aed 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -34,7 +34,7 @@ jobs:
     name: Publish Python distributions to TestPyPI
     runs-on: ubuntu-latest
     needs: run-tests  # only run when tests where successful
-    if: github.ref == 'refs/heads/master'
+    if: startsWith(github.ref, 'refs/tags')
 
     steps:
       - uses: actions/checkout@v2