-r requirements.txt
flake8==3.5.0
pytest==3.3.1
pytest-mock==1.6.3
pytest-cov==2.5.1
pytest-xdist==1.21.0
coveralls==1.2.0
freezegun==0.3.9
requests-mock==1.4.0
# optional requirements for jsonschema
strict-rfc3339==0.7
rfc3987==1.3.7

-r requirements.txt
flake8==3.5.0
pytest==3.3.2
pytest-mock==1.6.3
pytest-cov==2.5.1
pytest-xdist==1.21.0
coveralls==1.2.0
freezegun==0.3.9
requests-mock==1.4.0
# optional requirements for jsonschema
strict-rfc3339==0.7
rfc3987==1.3.7

Update pytest from 3.3.1 to 3.3.2
Update pytest from 3.3.1 to 3.3.2