Welcome to the FAQ website covering document topics in Canada.
My son has a valid Canadian passport until 2021. He was then 3 months old in the picture. Now that he is already 16 mos old, do I still need to renew his passport even if it is still valid but because he grows up and have different looks now compare to the picture?
Your son’s passport is valid until 2021. They expect children to change appearance. You do not need to replace the passport until it is about to expire.