-r ./base.txt
sphinx==1.6.5
alagitpull==0.0.14
releases==1.4.0  # updated from 1.3.1

-r ./base.txt
sphinx==1.6.6
alagitpull==0.0.14
releases==1.4.0  # updated from 1.3.1

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