Mac Upgrade pip WARNING: You are using pip version 21.1.1; however, version 21.1.3 is available. You s

error:
WARNING: You are using pip version 21.1.1; however, version 21.1.3 is available.
You should consider upgrading via the ‘/usr/local/opt/[email protected]/bin/python3.9 -m pip install –upgrade pip’ command.
Error solution
I also used the Windows upgrade method and found that it didn’t work, what a fucking headache!
Windows pip upgrade link

The right solution
pip3 install –upgrade pip

Read More: