--requirement requirements.txt

# Documentation
Sphinx==1.6.5
sphinxcontrib-httpdomain==1.5.0

# Fix setuptools issues
setuptools==38.2.5

--requirement requirements.txt

# Documentation
Sphinx==1.6.6
sphinxcontrib-httpdomain==1.5.0

# Fix setuptools issues
setuptools==38.2.5

Update sphinx from 1.6.5 to 1.6.6
Update sphinx from 1.6.5 to 1.6.6