diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 67294ca..3914c03 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -44,7 +44,7 @@ jobs:
       # this is why we run `coverage xml` afterwards (required by codecov)
     - name: Upload to Codecov
       if: github.repository == 'executablebooks/jupyter-cache' && matrix.python-version == '3.10' && matrix.os == 'ubuntu-latest'
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
       with:
         name: jupyter-cache-pytests-py3.10
         flags: pytests