diff --git a/.github/workflows/test-backend.yaml b/.github/workflows/test-backend.yaml
index 94d422f1..3f764d38 100644
--- a/.github/workflows/test-backend.yaml
+++ b/.github/workflows/test-backend.yaml
@@ -42,7 +42,11 @@ jobs:
           VERSION: test
           RELEASEID: test
         run: |
-          python -m pytest --cov=app --cov-report=xml
+          coverage run --concurrency=thread,greenlet --source=app -m pytest
+          coverage xml
+        # https://github.com/nedbat/coveragepy/issues/1082
+        # pytest-cov doesn't seem to support the `concurrency` flag so
+        # using coverage commands
 
       - name: Codecov
         # You may pin to the exact commit or the version.