diff --git a/.github/workflows/unittests.yml b/.github/workflows/unittests.yml
index d75b5d3..88ae454 100644
--- a/.github/workflows/unittests.yml
+++ b/.github/workflows/unittests.yml
@@ -68,7 +68,7 @@ jobs:
       run: coverage xml
 
     - name: Upload coverage metrics to codecov
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
 
     # tests the package, the release is done in build.yml
     - name: Build a binary wheel and a source tarball
@@ -87,4 +87,4 @@ jobs:
       uses: pypa/gh-action-pypi-publish@release/v1
       with:
         password: ${{ secrets.TEST_PYPI_API_TOKEN }}
-        repository_url: https://test.pypi.org/legacy/
+        repository-url: https://test.pypi.org/legacy/