Use Str::random() instead of str_random()

database/factories/UserFactory.php

@@ -1,6 +1,7 @@
 <?php
 
 use Faker\Generator as Faker;
+use Illuminate\Support\Str;
 
 /*
 |--------------------------------------------------------------------------
@@ -19,6 +20,6 @@ $factory->define(App\User::class, function (Faker $faker) {
         'email' => $faker->unique()->safeEmail,
         'email_verified_at' => now(),
         'password' => '$2y$10$TKh8H1.PfQx37YgCzwiKb.KjNyWgaHb9cbcoQgdIVFlYg7B77UdFm', // secret
-        'remember_token' => str_random(10),
+        'remember_token' => Str::random(10),
     ];
 });