diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 6bf98df..7b63aa4 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -44,13 +44,13 @@ jobs:
 
       - name: Publish to Production PyPI
         if: github.event_name == 'release' || (github.event_name == 'workflow_dispatch' && inputs.environment == 'pypi')
-        uses: pypa/gh-action-pypi-publish@release/v1
+        uses: pypa/gh-action-pypi-publish@cef221092ed1bacb1cc03d23a2d87d1d172e277b # release/v1
         with:
           password: ${{ secrets.PYPI_API_TOKEN }}
 
       - name: Publish to Test PyPI
         if: github.event_name == 'workflow_dispatch' && inputs.environment == 'testpypi'
-        uses: pypa/gh-action-pypi-publish@release/v1
+        uses: pypa/gh-action-pypi-publish@cef221092ed1bacb1cc03d23a2d87d1d172e277b # release/v1
         with:
           repository-url: https://test.pypi.org/legacy/
           password: ${{ secrets.TEST_PYPI_API_TOKEN }}