diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8da479d..c849765 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,7 +25,7 @@ jobs:
         run: pipenv run python setup.py sdist
       - name: Publish package
         if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags')
-        uses: pypa/gh-action-pypi-publish@master
+        uses: pypa/gh-action-pypi-publish@v1.0.0a0
         with:
           user: __token__
           password: ${{ secrets.pypi }}