Django==1.11.3
dj-database-url==0.3.0
django-debug-toolbar==1.8
djangorestframework==3.6.3
psycopg2==2.6.1

Django==1.11.3
dj-database-url==0.4.2
django-debug-toolbar==1.8
djangorestframework==3.6.3
psycopg2==2.7.1

Upgrade database libraries to latest versions.
Upgrade database libraries to latest versions.
