-r requirements.txt
coverage==4.5.2
coveralls==1.5.1
flake8==3.7.5
mock==2.0.0
pytest==4.2.1
pytest-cov==2.6.1

-r requirements.txt
coverage==4.5.2
coveralls==1.6.0
flake8==3.7.5
mock==2.0.0
pytest==4.2.1
pytest-cov==2.6.1

Update coveralls from 1.5.1 to 1.6.0
Update coveralls from 1.5.1 to 1.6.0