How can I get rid of this warning to upgrade from pip?

Question

Whenever I use pip, it warns me that my pip is out of date and that I need to upgrade it by doing pip install --upgrade pip.

But when I do that it seem

Answer 1

You need to run:

pip install --upgrade pip

twice.

The first time it upgrades to version 8.1.0 and the second time to 8.1.1. After this there will be no warnings anymore.