Weeknum should start from week=54

Hello Community,
My calendar starts from 01/01/2021 to 01/12/2022. I am using WEEKNUM to find the week number in the table.
I am getting the right week num for 2021, but when 2022 starts, I want to start with weeks from 54,55,56,57, not from 1,2,3,4, etc.
Can anyone suggest me some logic?