diff --git a/.github/workflows/unittests_codecov.yml b/.github/workflows/unittests_codecov.yml
index e902b69..fb3a70a 100644
--- a/.github/workflows/unittests_codecov.yml
+++ b/.github/workflows/unittests_codecov.yml
@@ -35,7 +35,7 @@ jobs:
         pytest --cov=mkdocs_print_site_plugin --cov-report=xml -vvv
     - name: Upload coverage to Codecov
       if: "contains(env.USING_COVERAGE, matrix.python-version)"
-      uses: codecov/codecov-action@v1
+      uses: codecov/codecov-action@v4
       with:
         token: ${{ secrets.CODECOV_TOKEN }}
         file: ./coverage.xml