app/Socialite/SocialiteServiceProvider.php

EngineersBlog-LaravelSocialite-SocialiteServiceProvider.php

<?php

namespace App\Socialite;

use Laravel\Socialite\SocialiteServiceProvider as OriginalSocialiteServiceProvider;

class SocialiteServiceProvider extends OriginalSocialiteServiceProvider
{
    public function register()
    {
        $this->app->singleton('Laravel\Socialite\Contracts\Factory', function ($app) {
            return new SocialiteManager($app);
        });
    }
}