The Heartbreaker star and longtime boyfriend Jean-David Blanc are expecting another baby

Melissa George‘s family is growing.

The actress, who stars on upcoming NBC drama Heartbreaker, and longtime boyfriend Jean-David Blanc are expecting their second child, the network confirms to PEOPLE. The show will now debut midseason, as opposed to fall as originally planned.

The couple welcomed their first child, son Raphaël, now 16 months, last February, sharing the news over Twitter.

“Welcome to the world! Our beautiful son just born at the American hospital of Paris,” George, 38, wrote at the time. “There are no words to describe the love.”

Melissa George Pregnant Expecting Second Child Jean-David Blanc

Ian Langsdon/EPA/Landov

The Aussie actress, who’s had prior roles on The Slap, Good Wife, Grey’s Anatomy and Alias also announced her pregnancy news over the social media platform, writing, “Baby on the way! So so happy.”

— Sheila Cosgrove Baylis with reporting by Aili Nahas