How to disable 'create_at' and 'update_at' in Laravel's seed file?

I don't want to use rows 'update_at' and 'create_at', but Laravel's seed file is trying to update it. How can I disable it?

Here is the code that I'm using:

use Illuminate\Database\Migrations\Migration;

class SeedUsersTable extends Seeder {

// $timestamps = false;  <=== will return error
// public static $timestamps = false;  <=== will return error

    public function run()
    {
        DB::table('users')->delete();
        User::create(array(
                'id' => 1,
                'name' => 'Админ',
                'password' => Hash::make('admin'),
                'login' => 'admin'
        ));
    }
}