Does HandyControl passwordbox support Caliburn Micro?

[acesoflife]

I am trying to use HandyControl passwordbox with Caliburn Micro but for some reason the NotifyOfPropertyChange is not getting fired when i edit the passwordbox field..any ideas?

<hc:PasswordBox Margin="10" Name="password" ShowClearButton="True" ShowEyeButton="true" hc:InfoElement.Placeholder="Password" Height="34" Width="174"/>

    public string UserName
    {
        get { return _userName; }
        set
        {
            _userName = value;
            NotifyOfPropertyChange(() => UserName);
            NotifyOfPropertyChange(() => CanLogIn);
        }
    }

    public string Password
    {
        get { return _password; }
        set
        {
            _password = value;
            NotifyOfPropertyChange(() => Password);
            NotifyOfPropertyChange(() => CanLogIn);
        }
    }

    public bool CanLogIn
    {
        get
        {
            bool output = false;

            if (UserName?.Length > 0 && Password?.Length > 0)
            {
                output = true;
            }

            return output;
        }

    }

    public void LogIn()
    {
        Console.WriteLine();
    }`