diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index 2b2d7e5..3191ec0 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -43,7 +43,7 @@ jobs:
         run: pytest brainprint --cov=brainprint --cov-report=xml --cov-config=pyproject.toml
       - name: Upload to codecov
         if: ${{ matrix.os == 'ubuntu' && matrix.python-version == 3.9 }}
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           files: ./coverage.xml
           flags: unittests # optional