diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index c9d31c5..e9f4cd0 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -47,7 +47,7 @@ jobs:
       run: |
         tox -e tests
     - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
       with:
         token: ${{ secrets.CODECOV_TOKEN }}
         flags: ${{ matrix.os }}_${{ matrix.python-version }}