After meeting for the first time at the altar five years ago on Lifetime's Married at First Sight (produced by Kinetic Content), Jamie Otis and Doug Hehner — who welcomed daughter Henley Grace in 2017 — secretly renewed their vows in Curaçao at the Santa Barbara Beach and Golf Resort in April.

"Jamie and I wanted to take some time to celebrate how far we’ve come personally and emotionally and reflect on the time we spent together," Hehner tells PEOPLE exclusively. "Five years is a very big deal!"

Adds Otis: "We wanted to do something extremely private and extra special to celebrate our five-year anniversary."

The couple shared the ceremony on their YouTube channel Hot Marriage Cool Parents.