if you have been approved as a sponsor already, then send a scan of the new passport, together with your file number, to Peru.
If you have not been approved as a sponsor yet, then wait until you are approved ( then you will get your file number) and send it to Peru a few weeks later.
As she is from a non-visa-exempt country, she will have to send her actual passport at the end of the process, but only once she is asked for it - so in the meantime, you can inform them with a scanned version.
Good luck,
Sweden