-r ./base.txt
sphinx==1.5.6
alagitpull==0.0.5
releases==1.3.1  # updated from 1.2.1

-r ./base.txt
sphinx==1.6.2
alagitpull==0.0.5
releases==1.3.1  # updated from 1.2.1

Update sphinx from 1.5.6 to 1.6.2
Update sphinx from 1.5.6 to 1.6.2