diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index 346f04b7..bc3d3d13 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -29,7 +29,7 @@ jobs:
       run: |
         pyversion=${{ matrix.python-version }}
         TOXFACTOR=${pyversion//.0-*/}
-        tox -f py${TOXFACTOR//./} --parallel --quiet
+        tox -f py${TOXFACTOR//./}
 
     - name: Upload code coverage data
       env: