Chris Hardwick is officially off the market!

The 43-year-old actor is engaged to actress and fashion blogger Lydia Hearst, he announced via Instagram on Sunday, Sept. 13.

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"My biggest win of the night was actually @lydiahearst saying YES!!!! This ring belonged to her grandmother Catherine Hearst and @patriciahearst has graciously and wonderfully passed it down to me to give to Lydia. IT'S OFFICIAL!!! What an absolutely perfect and amazing night!! I love this woman with all my heart," Chris captioned a photo of his fiancée's huge engagement ring.

Lydia, 30, similarly posted a sweet black and white photo of herself and Chris on Instagram with the caption, "I said YES!!!!!! Every love story is beautiful, but ours is my favorite. You completely swept me off my feet. You have shown me what it feels like to be loved and I love you with all my heart. My life is better because you are in it."

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The Walking Dead star and Lydia first began dating in 2014. Chris was previously engaged to actress Jacinda Barrett and has dated Janet Varney and Chloe Dykstra. The blogger has dated actor Kevin Connoly.

Congratulations to the happy couple on their engagement!