Sibling Residency Status Change while application pending

At the time of submitting my Express Entry Application ( eAPR) towards the end of september , my brother was a permanent resident and i submitted the appropriate supporting documents for the same ( PR Card, Proof of residence etc). While my application is still pending, my borther became a Canadian Citizen in the End of November.
Is there anything i need to do or update my application in anyway. I claimed Sibling points towards my CRS Score so just wanted to be sure.

Did the question say “Is your sibling a PR or a Citizen?” or did it say “Is your sibling a PR”? If it’s the former I don’t think any change is required. If it’s the latter, see if the CIC web form has an option that lets you inform them of this. In any case I don’t see it as a drawback.