-r requirements.txt
isort==4.3.4
pytest==3.10.1
pytest-env==0.6.2
pytest-mock==1.10.1
pytest-cov==2.6.1
pytest-xdist==1.26.1
coveralls==1.5.1
beautifulsoup4==4.7.1
freezegun==0.3.11
flake8==3.7.5
flake8-print==3.1.0
requests-mock==1.5.2

-r requirements.txt
isort==4.3.4
pytest==3.10.1
pytest-env==0.6.2
pytest-mock==1.10.1
pytest-cov==2.6.1
pytest-xdist==1.26.1
coveralls==1.5.1
beautifulsoup4==4.7.1
freezegun==0.3.11
flake8==3.7.6
flake8-print==3.1.0
requests-mock==1.5.2

Update flake8 from 3.7.5 to 3.7.6
Update flake8 from 3.7.5 to 3.7.6