Remove Laravel Package routes and add new

I installed this package https://github.com/jeremykenedy/laravel-roles on my Laravel 6.X application, I wanted to disable the routes so I would like to add a prefix of admin/ before the set routes... Changing the routes in Vendor folder doesn't help because it will get updated and gone if you run composer update, any idea on how to solve this issue, other than forking the repo?

thanks in advance.

via Chebli Mohamed