-r requirements.txt

coverage==4.5.3
coveralls==1.7.0
flake8==3.7.7
mock==3.0.5
pytest==4.4.1
pytest-cov==2.6.1

-r requirements.txt

coverage==4.5.3
coveralls==1.7.0
flake8==3.7.7
mock==3.0.5
pytest==4.5.0
pytest-cov==2.6.1

Update pytest from 4.4.1 to 4.5.0
Update pytest from 4.4.1 to 4.5.0