diff --git a/.github/workflows/publish-to-test-pypi.yml b/.github/workflows/publish-to-test-pypi.yml
index 9fdadee..2f3d63f 100644
--- a/.github/workflows/publish-to-test-pypi.yml
+++ b/.github/workflows/publish-to-test-pypi.yml
@@ -63,7 +63,7 @@ jobs:
           git push 
 
   build_wheels:
-    if: "startsWith(github.event.head_commit.message, 'bump:')"
+    if: "github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v') && startsWith(github.event.head_commit.message, 'bump:')"
     name: Build wheels on ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     strategy: