The judge ruled last year the Google Play app store was required to make changes to its payment system after forcing app developers to explicitly use its proprietary system.

Alphabet Inc.’s Google is asking a federal appeals court to throw out a ruling in an antitrust case brought by Fortnite-maker Epic Games that would force the search giant to overhaul its Play mobile app store.

Google has asked an appeals court to overturn Epic Games’ earlier win, which would have forced Google to allow outside payment systems and apps.