passing parameter to controller constructor not working

I am trying to pass class object to controller constructor but its not working.

    <?php
        $di->get('UsersController', [
        new \Phalcon\Repositories\UsersRepository()
    ]);

    class UsersController extends AbstractController
    {
      /**
       * @var Phalcon\Repositories\UsersRepository
       */
      private $usersRepository;

      /**
       * @param $usersRepository
       */
      public function __construct($usersRepository)
      {
          $this->usersRepository = $usersRepository;
      }

      public function registerAction($user)
      {
          $this->usersRepository->create($user);
      }

      public function listusersAction()
      {
          var_dump($this->usersRepository->findById(1));exit;
      }
    }

    class UsersRepository implements UsersRepositoryService
    {
        /**
         * @var Users
         */
        private $users;

        public function __construct()
        {
            $this->users = new Users();
        }

        public function create(array $user)
        {
            $this->users->save($user);
        }

        public function find()
        {

        }

        public function findById($id)
        {
            return Users::findFirst($id);
        }

        public function findByEmail($email)
        {

        }

        public function updateById($id)
        {

        }

    }

when I am trying to access listusers (https://localhost:8888/cart/users/listusers) function its gives error

Warning: Missing argument 1 for UsersController::__construct() in /Applications/MAMP/htdocs/cart/app/controllers/UsersController.php on line 19

Notice: Undefined variable: usersRepository in /Applications/MAMP/htdocs/cart/app/controllers/UsersController.php on line 21

Fatal error: Call to a member function findById() on null in /Applications/MAMP/htdocs/cart/app/controllers/UsersController.php on line 31

but If I do dump usersRepository in constructor its returning object but I dont know why phalcon is calling methods directly without calling constructor or may be its calling more than two times.