django-admin.py is using Django 1.11 instead of Django 2
I was facing the same issue and I have resolved it now. You can do the following steps:
1) Run which django-admin it should show the path to django-admin 1.11.
2) Copy the path printed after above command. Let path be 
3) Run the following command: rm -rf <path>
I have both python2 and python3 installed on my ubuntu machine.
Also I have both versions of Django[Django 1.11 and Django 2.1.3] 
Installed.
Whenever I make a new project in django.
django-admin is using Django 1.11 by default
How do I create a project in Django 2.1.3 instead of Django 1.11??
I tried using virtualenv but its not working correctly ??