-r requirements.txt
flake8==3.7.7
pytest==5.0.0
pytest-cov==2.7.1
pytest-django==3.5.1

-r requirements.txt
flake8==3.7.8
pytest==5.0.0
pytest-cov==2.7.1
pytest-django==3.5.1

Update flake8 from 3.7.7 to 3.7.8
Update flake8 from 3.7.7 to 3.7.8