another try

.github/workflows/default.yml

@@ -54,7 +54,7 @@ jobs:
           python -m pip install --upgrade pip
           pip install packaging
           pip install -r tests/requirements.txt
-          python setup.py install
+          python setup.py install --no-cache-dir
       - name: Run coverage
         run: coverage run setup.py test
       - name: Upload Coverage to Codecov