How to update appstore app from the command line

I have installed Nextcloud 13 RC2. I really like the new occ app:install command. But I cannot find a way to properly update an app. The only way I have found is to disable the app, delete its folder and then run occ app:install again. Is there another way?

Please take a look at https://github.com/nextcloud/server/issues/7002 and linked issues.

Thank you for the link!