Change Activate URL

Hello. I want to see if there is a way I can change the url a new member gets sent through from the Activation Email. In the email I see the link is using the {account_activation_link} shortcode and when a new member clicks on it, the member gets directed to domain.com/?updated=account_active. However, I want to send them to a different page url, like: domain.com/new-member/?updated=account_active. How could I do this? Can I edit the core plugin files on my child theme?

https://ww.wp.xz.cn/plugins/ultimate-member/