diff --git a/.github/workflows/check_unit_tests.yml b/.github/workflows/check_unit_tests.yml
index cc7bd43..3c0717a 100644
--- a/.github/workflows/check_unit_tests.yml
+++ b/.github/workflows/check_unit_tests.yml
@@ -39,7 +39,7 @@ jobs:
           uv run coverage xml -o coverage.xml
 
       - name: Upload combined coverage to Codecov
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v6
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           files: coverage.xml