You can provide the IRS with your correct, updated mailing
address by mailing Form 8822, Change of Address to the IRS Service
Center designated for your location, so that any refund you are anticipating
can get properly routed to you.
Please see
link below for Form 8822 and its filing instructions:
https://www.irs.gov/pub/irs-pdf/f8822.pdf
You may
also want to call the IRS to provide them with your correct mailing address sooner, while your refund check is
still getting processed, at 1
(800) 829-1040.