diff --git a/.github/workflows/pullrequest.yml b/.github/workflows/pullrequest.yml
index b96a2ef7..9904c2c2 100644
--- a/.github/workflows/pullrequest.yml
+++ b/.github/workflows/pullrequest.yml
@@ -44,6 +44,7 @@ jobs:
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@e0fbd592d323cb2991fb586fdd260734fcb41fcb
         with:
+          token: ${{ secrets.CODECOV_TOKEN }} # not required for public repos
           flags: unittests # optional
           name: coverage # optional
           fail_ci_if_error: true # optional (default = false)