You'll need to update it in the app, because we won't know it's changed.
Your Yonder payment is a fixed amount, so if your fixed rate ends or your lender reviews your payment, the amount we send stays the same until you change it. If it's less than you owe, you'll fall behind with your lender.
To change it, go to your rent and mortgage screen, tap Manage, then Edit. It's worth making a note of when your fixed rate ends so you remember to check.