diff --git a/actions/python/deployment/action.yml b/actions/python/deployment/action.yml
index 1d744b5..a319a12 100644
--- a/actions/python/deployment/action.yml
+++ b/actions/python/deployment/action.yml
@@ -33,12 +33,14 @@ runs:
       run: python -m build
 
     - name: Publish package to TestPyPI
+      if: startsWith(github.ref, 'refs/tags/')
       uses: pypa/gh-action-pypi-publish@release/v1
       with:
         repository-url: https://test.pypi.org/legacy/
         verbose: true
 
     - name: Publish package to PyPI
+      if: startsWith(github.ref, 'refs/tags/')
       uses: pypa/gh-action-pypi-publish@release/v1
       with:
         verbose: true