January 06, 2014 04:45 PM

Michael Buckner/Wireimage

They’re newlyweds and newly expecting.

Justin Bartha and wife Lia Smith are set to welcome a baby later this year, PEOPLE has confirmed.

The couple tied the knot Saturday on Oahu in Smith’s native Hawaii.

Reese Witherspoon and her husband, agent Jim Toth, Jesse Eisenberg and Ken Jeong were among the guests who enjoyed a reception at Kualoa Ranch following the ceremony.

The Hangover and New Normal star, 35, had popped the question to the fitness trainer last May.

The coming addition will be the first child for each.

A rep for Bartha hasn’t commented on the couple’s happy news.

— Sarah Michaud with reporting by Julie Jordan

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