OTA update creates new Expo app but doesn't update App Store app

I’m a new Expo user and working with a pre-existing codebase that already uses Expo and has a live app published to the App/Play Store.

I made some small changes and ran expo publish, which created the app at https://expo.io/@myUsername/appName but I’m wondering how to get those changes reflected in the standalone app currently published in the App/Play Store. I’ve been added to the dev team account in App Store Connect and Google Play Console but am not sure where to go from here?