Escrow question- possible money board

I will ask the o-t though, sure I will get good answers. Got a surplus check from my mortgage company. So as a new homeowner, I called them to see what was up. They Said they had set a certain amount aside for taxes for last year and the taxes that were assessed where way less, couple hundred dollars. Bought a newly built house last year, so the reason the taxes were low, is because the house wasn't there at the time the value was assessed, just the land. So my mortgage payments will now be lower based off of the taxes for last year, however those taxes will go up and be higher, because now there is a house there. So my question is shouldn't I just tell the mortgage company to keep the payment the same it is now and not lower the payment? That way the correct amount will be taken out of my mortgage every month, not the amount based off of last years taxes. Thanks.