Olympic swimmer Michael Phelps engaged

Updated 8:46 PM EST, Sun February 22, 2015
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Story highlights

"She said yes," he captions a picture of himself with girlfriend Nicole Johnson

"I am gonna be a Mrs," Johnson posts

(CNN) —  

Record-setting Olympic swimmer Michael Phelps is taking the plunge.

The gold medalist is engaged to girlfriend Nicole Johnson, according to their verified social media accounts.

The couple announced the news early Sunday morning on their Twitter and Instagram accounts.

“She said yes,” Phelps captioned a picture of him and Johnson cuddling in the snow.

Johnson, a former Miss California, posted a similar photo showing a huge rock on her finger.

“I am gonna be a Mrs,” she captioned hers, adding his name at the end.

CNN reached out to Phelps’ representative, but has not heard back.

His sister, Hilary Phelps, congratulated the couple on her Facebook page.

“CONGRATULATIONS to these two lovebirds on their engagement! Couldn’t be happier for my brother and thrilled to gain a sister, who I adore and love already!”

The new addition to his family comes as the 22-time Olympic medalist is training for his fifth Olympic Games, set for this summer in Brazil.

CNN’s Faith Karimi contributed to this report.