Notify item changed is not working in recyclerview

Question

My code adds items to favorites in SQLite:

if (productsArray.get(getAdapterPosition()).isFavorite()){
    productsArray.get(getAdapterPosition()).setFavorite(false);
}else{
    productsArray.get(getAdapterPosition()).setFavorite(true);
}
notifyItemChanged(getAdapterPosition());

My "notify item changed" function is not working for view. In my onBindViewHolder(), the favorite image is not changing

if (products.isFavorite()){
    holder.fav_img.setImageDrawable(context.getDrawable(R.drawable.ic_favorite_on));
}else{
    fav_img.setImageDrawable(context.getDrawable(R.drawable.ic_favorite_off));
}