-r requirements.txt
pycodestyle==2.3.1
pytest==3.2.2
pytest-mock==1.6.2
pytest-cov==2.5.1
pytest-xdist==1.20.0
coveralls==1.2.0
httpretty==0.8.14
beautifulsoup4==4.6.0
freezegun==0.3.9

-r requirements.txt
pycodestyle==2.3.1
pytest==3.2.2
pytest-mock==1.6.3
pytest-cov==2.5.1
pytest-xdist==1.20.0
coveralls==1.2.0
httpretty==0.8.14
beautifulsoup4==4.6.0
freezegun==0.3.9

Update pytest-mock from 1.6.2 to 1.6.3
Update pytest-mock from 1.6.2 to 1.6.3