-r ./base.txt
sphinx==1.7.3
alagitpull==0.0.20
releases==1.4.1  # updated from 1.3.1

-r ./base.txt
sphinx==1.7.4
alagitpull==0.0.20
releases==1.4.1  # updated from 1.3.1

Update sphinx from 1.7.3 to 1.7.4
Update sphinx from 1.7.3 to 1.7.4