Fix

.github/workflows/tests.yml

@@ -20,6 +20,6 @@ jobs:
       - name: Display Python version
         run: python -c "import sys; print(sys.version)"
       - name: Install dependencies
-        run: python -m pip install requirements.txt
+        run: python -m pip install -r requirements.txt
       - name: Run tests
         run: python -m pytest -vs