How to get rid of nagging ‘give us a 5 star’ bar?

“Hi Verdi! You’re using WooCommerce PDF Invoices for some time now and we would appreciate your ★★★★★ rating. It will support future development big-time.”

So I did give you a five star rating, because your plugin is awesome! Less so, is the bar that keep asking me that question. No matter how often I click it away. I keeps showing up after each page reload.

I’m sorry, but it’s really starting to bug me (and my customer!) Please tell me how to get rid of it.