diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 9dbef5d9..6e86a9f0 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -511,7 +511,7 @@ jobs:
         CIBW_BUILD: ${{ matrix.spec }}
         CIBW_PRERELEASE_PYTHONS: 'True'
         CIBW_TEST_REQUIRES: pytest setuptools pytest-xdist filelock
-        CIBW_TEST_COMMAND: 'python -m pytest {package}/src/c {project}/testing -n 4'
+        CIBW_TEST_COMMAND: 'cd {project}; PYTHONUNBUFFERED=1 pytest -n 4'
       run: |
         set -eux