pip dependency issue

[mojjy]

I had to update requirmets.txt to look like the following

Django==1.11.2
django-cors-headers==2.1.0
django-filter==1.0.4
graphene==1.4.1
graphene-django==1.3
graphql-core==1.1.0
graphql-relay==0.4.5
ipdb==0.10.3

Something must have changed since this was originally written, thanks for a nice example.