How do I update the password for Git?

In Windows 10 with Git

Remove/update related Credentials stored in Windows Credentials in >>Control Panel\All Control Panel Items\Credential Manager

None of the other answers worked for me on MacOS Sierra 10.12.4

Here is what I had to do:

git config --global --unset user.password

Then run your git command (ex. git push) and reenter your username and password.

The only way I could modify my git password was to go to Credential Manager in Windows (Windows Key + type 'credential') and edit the git entry under Windows Credentials 🡒 Generic Credentials. Note: Not listed alphabetically

To fix this on macOS, you can use

git config --global credential.helper osxkeychain

A username and password prompt will appear with your next Git action (pull, clone, push, etc.).

For Windows, it's the same command with a different argument:

git config --global credential.helper wincred