Validator::extend(....) not working

[lutchin]

....\bonecms\laravel-captcha\src\Providers\CaptchaServiceProvider.php protected function registerValidator() { Validator::extend(config('bone.captcha.validator'), function ($attribute, $value, $parameters, $validator) { return $this->app[Captcha::class]->validate($value); }, trans('bone::captcha.incorrect_code')); }
This code not working for me

This code variant works: protected function registerValidator() { Validator::extendImplicit(config('bone.captcha.validator'), function ($attribute, $value, $parameters, $validator) { return $this->app[Captcha::class]->validate($value); }, trans('bone::captcha.incorrect_code')); }