“Whiplash” star Miles Teller and his girlfriend, model Keleigh Sperry, have become engaged.

Sperry, 24, posted three Instagram photos Tuesday of herself and Teller, 30, in Africa, with one image showing her wearing a large, square-cut diamond ring. Her caption included an emoji of a heart and an engagement ring. Sperry’s event-planner sister, Christie Sperry York, several hours earlier had posted six images of the couple, including three with close-ups of the ring.

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“These two got engaged while on an African Safari over the weekend!!” York wrote. “Can’t believe the last Sperry girl is engaged! Love both of you guys to pieces and so incredibly happy for this new chapter in your love story! Now come home so we can celebrate.”

The couple has been dating since 2013, according to People magazine.