The 50-year-old athlete, who was a quarterback for the Dallas Cowboys before retiring in April 2001, revealed the exciting news with an adorable snap of him and his fiancée drinking wine aboard a board.
"June 2, 2017," he captioned it. "A special day as I proposed to the love of my life."
Mooty echoed Aikman's sweet sentiments on her own Instagram, sharing a photo of the two kissing, which appears to have been snapped just moments after she said "Yes."
"I've waited my whole life for you!! ❤" she gushed. "#loveofalifetime."