-r requirements.txt
coverage==4.5.3
factory-boy==2.11.1
faker==1.0.4
flake8==3.7.7
mccabe==0.6.1
mock==2.0.0
pbr==5.1.3
pycodestyle==2.5.0
pyflakes==2.1.1
python-dateutil==2.7.5
selenium==3.141.0
text-unidecode==1.2
django-coverage-plugin==1.6.0

-r requirements.txt
coverage==4.5.3
factory-boy==2.11.1
faker==1.0.4
flake8==3.7.7
mccabe==0.6.1
mock==2.0.0
pbr==5.1.3
pycodestyle==2.5.0
pyflakes==2.1.1
python-dateutil==2.7.5
selenium==3.141.0
text-unidecode==1.2
django-coverage-plugin==1.6.0
tblib==1.4.0

Add tblib to test requirements
Add tblib to test requirements
