Errors when attempting to deploy Rocketchat on Heroku

I recently tried to deploy from heroku via their github page. Upon attempting to deploy your app, however, the deploy process is eventually ended and the console is left with the message:

Browserslist: caniuse-lite is outdated. Please run next command `npm update`

Help would be greatly appreciated.
~ PineappleBox

Hello, as the issue persists, are there any updates on this?