This client always install request 2.11.1 and broke other OST clients

[CesarJorge]

This client always install request 2.11.1 and broke other OST clients

pip install --upgrade python-barbicanclient==3.0.0
Successfully installed oslo.config-3.17.0 oslo.i18n-3.9.0 oslo.serialization-2.13.0 oslo.utils-3.16.0 python-barbicanclient-3.0.0 python-keystoneclient-3.5.0 requests-2.11.1 stevedore-1.17.1

And then (openstackclient 1.0.5):
ERROR: openstackclient.shell Exception raised: (requests 2.11.1 (/usr/lib/python2.7/site-packages), Requirement.parse('requests!=2.4.0,<2.8.0,>=2.2.0'), set(['python-keystoneclient', 'python-glanceclient', 'python-cinderclient']))