-r requirements.txt
flake8==3.7.3
pytest==4.1.1
pytest-cov==2.6.1
pytest-django==3.4.5

-r requirements.txt
flake8==3.7.4
pytest==4.1.1
pytest-cov==2.6.1
pytest-django==3.4.5

Update flake8 from 3.7.3 to 3.7.4
Update flake8 from 3.7.3 to 3.7.4