Filed on 2/01 and recieved a W2 in the mail today (2/03) from work I did at the beginning of the year and forgot about... Is it possible to fix this mistake now?

Title pretty much sums it up.  I received my W-2 with my current employer digitally and went ahead and filed my return with TurboTax Online.  Then today in the mail I got the W-2 for a job that I left after the beginning of last year.  Is it possible to fix this and resubmit or do I have to wait until some time in the future and amend my 2020 return?

Thanks