Adjust a posted deposit


We are using Deposits to record customer payments. Today, we posted the deposit but after the fact we noticed that the written amount of the check was different from the printed amount and now we need to make an adjustment to the deposit so the posted deposit report shows the correct amount. How do I make this kind of adjustment? I know how to use Unapply and Reverse on the customer ledger entry but how do I make changes to the deposit once it’s been posted?