diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 93eef567143c7ef5afe9b24516ac9a159e12f6ab..1f04b3f798dd62c44acf3d9198b58e206e2d7699 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -45,5 +45,7 @@ deploy-prod-pypi:
     - pip install -U twine
     - python setup.py bdist_wheel
     - twine upload dist/*
-    
+  rules:
+    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
+