Alongside iOS 8.1, Apple has released a new version of its Apple Store app just in time for Apple Pay. The new version supports Apple’s new mobile payment service with a dedicated “Buy with Apple Pay” button available at checkout. You can download the update for free from the App Store, but be prepared to pay real money for whatever you end up buying in the app.

Apple Pay is available today for iPhone 6 and iPhone 6 Plus users, and iPad Air 2 and iPad mini 3 users will be able to buy merchandise within apps when the new tablets ship later this week.

Apple’s Apple Store app is among the first apps to update with Apple Pay support, and a number of other apps are already hitting the App Store now that the service is available.