Prince George is growing up!

Kate Middleton and Prince William released new photos of their royal son on Saturday, Dec. 13 — and the little prince looks seriously adorable!

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Photo Credit: TRH The Duke and Duchess of Cambridge/PA Wire

In the new photos, the couple’s 16-month-old son — who is third in line to the British throne — is wearing a sweet Polarn O. Pyret jumpsuit and a Cath Kinston sweater vest adorned with royal guards.

The snapshots were reportedly taken by a member of the Duke and Duchess of Cambridge’s staff in late November in a courtyard of London’s Kensington Palace.

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Photo Credit: TRH The Duke and Duchess of Cambridge/PA Wire

Photographs of George — who will become a big brother when his parents welcome their second child next spring — were allegedly also taken while the toddler was visiting New Zealand on his first royal tour last April.

Related Story: See All the Photos from Kate Middleton and Prince Williams’ Royal Visit to NYC!

In 1983, similar images were released of a then-nine-month-old Prince William while he was on a royal tour of New Zealand with his late mother, Princess Diana.

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Photo Credit: Getty Images

According to a statement released by the British monarchy with the new photographs, the royal couple chose to share the snaps of George in “grateful acknowledgment of the fact that their request for Prince George to grow up without intrusion from photography has been, and continues to be, honored.”