Changing update message from Newspaper child theme

Maybe my question is very particular and limited to Newspaper theme users.

I’m using child theme with an update server. It works fine.

I’m wondering if I can change this update message and actions just for the child theme:

Wanna do this because when I hit the Update button it actually updates the parent theme instead. I don't know if this can actually be changed from child theme or custom plugins. This message only appears under /wp-admin/themes.php

I’ve tried coding this but got unsuccessful.

Any ideas? Thanks