-r common.txt
coveralls==1.5.1
mock==2.0.0
pytest==4.0.2
pytest-cov==2.6.0
tox==3.6.0

-r common.txt
coveralls==1.5.1
mock==2.0.0
pytest==4.0.2
pytest-cov==2.6.0
tox==3.6.1

Update tox from 3.6.0 to 3.6.1
Update tox from 3.6.0 to 3.6.1