-r requirements.txt
flake8==3.7.5
pytest==4.2.0
pytest-cov==2.6.1
pytest-django==3.4.7

-r requirements.txt
flake8==3.7.5
pytest==4.3.1
pytest-cov==2.6.1
pytest-django==3.4.7

Update pytest from 4.2.0 to 4.3.1
Update pytest from 4.2.0 to 4.3.1