I have updated my laravel vendor using composer. I have bought a package which is located in a github private repo. On downloading composer ask username and password, I have entered the wrong password so it gives me an error. After that I run composer update again but this time it just keep the old wrong password it did not ask me to enter the password again, somewhat save in composer cache. How could I remove the old password in composer?
In your ~/.composer, you'll have a file named config.json which contains OAuth token used to log you in GitHub.
Clear your OAuth token or delete this file.
Mine was in ~/.config/composer in there is a auth.json that contains saved credentials. Like netvision73 answer, clear your OAuth token or delete the file.
来源：https://stackoverflow.com/questions/18416486/how-to-remove-save-username-and-password-in-composer-laravel-4