【Updated: 】
You can update Animal Crossing: Pocket Camp by following the steps below.
Note: The following steps may differ depending on which version of the Google Play Store you are currently using. Please check the Google Play Store for more information.
① Open the Google Play Store.
② Tap your Google Account icon at the top right of the screen.
③ Tap Manage apps & device.
Tap See details under Updates available, and check if the Update button is displayed next to Animal Crossing: Pocket Camp.
You can update the app by tapping the Update button.
If the Update button does not appear or you are running into other issues, please check Google Play Help.
https://support.google.com/googleplay/answer/7513003?hl=en&rd=2&visit_id=1-636500502891747665-3973811408