diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 2d0d2b6..ef77b56 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -40,7 +40,7 @@ jobs:
         pytest --cov=sphinx_external_toc --cov-report=xml --cov-report=term-missing
     - name: Upload to Codecov
       if: matrix.python-version == 3.11
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
       with:
         name: pytests-py3.11
         flags: pytests