Don't change star color when I selected

[Wilmerj]

I'm integrate this library into my proyect but when I select one star don't change of color.
my code
<ReactStars count={5} onChange={ratingChangedServicio} size={34} color1={'#eee'} color2={'#ffe900'} />

method ratingChangedServicio

const ratingChangedServicio = (newRating) => { this.setState({servicio : newRating}); }