diff --git a/.github/workflows/ci-cmake_tests.yml b/.github/workflows/ci-cmake_tests.yml
index b536c18e..d750b937 100644
--- a/.github/workflows/ci-cmake_tests.yml
+++ b/.github/workflows/ci-cmake_tests.yml
@@ -65,7 +65,7 @@ jobs:
         gcovr -r .. . --xml gcovr.xml -e ".*_deps.*$"
 
     - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
       with:
         token: ${{ secrets.CODECOV_TOKEN }} # not required for public repos
         #directory: ${{runner.workspace}}/build