Congratulations are in order for Malin Akerman and Jack Donnelly! The actress announced on Instagram Friday that she is engaged to her British actor beau with a sweet snap—and a flash of her ring.

“This sweet and loving man has stepped into our lives and stole both our hearts!” she wrote in the caption, referencing her 4-year-old son Sebastian. “I think we’re gonna keep him around for a while ;) #engaged #isaidyes #jackdonnelly #family #yes.”

Four-year-old Sebastian's father is musician Roberto Zincone, whom Akerman was married to between 2007 to 2013.

In her smiley 'gram, Akerman also shows off a stunning ring with a unique stone in a bezel-cut setting.

Donnelly and Akerman were first linked back in March, when they were spotted kissing on a trip to Puerto Rico. “They are together and really happy in one another’s company,” a source told People.

Jack Donnelly and Malin Akerman
Credit: Owen Hoffmann/Getty Images

Congratulations to the happy couple!