diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 0ce1c2d5b..812df445b 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -60,6 +60,8 @@ jobs:
         flags: unittests
         name: codecov-umbrella
         fail_ci_if_error: true
+        # see https://github.com/codecov/codecov-action/issues/557
+        token: ${{ secrets.CODECOV_TOKEN }}
 
   test-cython:
     runs-on: ubuntu-latest