Fix Problem You are using pip version 20.1.1; however, version 21.1 is available - ihsanhaaa/Seputar-Windows GitHub Wiki

To upgrade pip using pip is a bit different than regular command. Use

python -m pip install --upgrade pip

Sumber: https://askubuntu.com/questions/1050677/after-running-pip-install-upgrade-pip-pip-tells-me-the-same-thing