How to notifiy CIC (ottawa office) regarding passport renewing

[xwlily]

My parents are waiting for PR visa, and their passports will expire in April 2019.
Now if they get their passports renewed, how do I let CIC (Ottawa office) know about?

Thank you.

 

[KBH]

You will submit a case specific inquiry on the IRCC web form with copies of the new passports

 

[xwlily]

You will submit a case specific inquiry on the IRCC web form with copies of the new passports

Thank you, it's very helpful.