diff --git a/.github/workflows/publish_testpypi.yml b/.github/workflows/publish_testpypi.yml
index b6acf05..320db0a 100644
--- a/.github/workflows/publish_testpypi.yml
+++ b/.github/workflows/publish_testpypi.yml
@@ -40,5 +40,5 @@ jobs:
       with:
         user: __token__
         password: ${{ secrets.TEST_PYPI_API_TOKEN }}
-        repository-url: https://test.pypi.org/legacy/
+        repository_url: https://test.pypi.org/legacy/
         verbose: true