diff --git a/.github/workflows/test_code.yml b/.github/workflows/test_code.yml
index 1bac22e..c56f4b2 100644
--- a/.github/workflows/test_code.yml
+++ b/.github/workflows/test_code.yml
@@ -57,7 +57,7 @@ jobs:
         run: |
           pytest --cov
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           fail_ci_if_error: false