diff --git a/.github/workflows/pythonapp.yml b/.github/workflows/pythonapp.yml
index 13047f9..f0ed8eb 100644
--- a/.github/workflows/pythonapp.yml
+++ b/.github/workflows/pythonapp.yml
@@ -26,7 +26,7 @@ jobs:
         run: |
           make coverage
       - name: Upload coverage
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           fail_ci_if_error: false