diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index acc3c40..1578b13 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -68,6 +68,7 @@ jobs:
       env:
         TWINE_USERNAME: ${{ secrets.PYPI_USERNAME }}
         TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
+        TWINE_REPOSITORY_URL: https://test.pypi.org/
       run: |
         python setup.py sdist bdist_wheel
         twine upload dist/*