diff --git a/.github/workflows/ci-cmake_tests.yml b/.github/workflows/ci-cmake_tests.yml
index 593b34b..441489c 100644
--- a/.github/workflows/ci-cmake_tests.yml
+++ b/.github/workflows/ci-cmake_tests.yml
@@ -95,7 +95,7 @@ jobs:
           cat ./coverage.xml  # print coverage information
       
       - name: Publish to codecov
-        uses: codecov/codecov-action@v4
+        uses: codecov/codecov-action@v3
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           files: ${{runner.workspace}}/build/coverage.xml