Lepistö competed at one event on the Junior Grand Prix series, finishing 5th at the event in Slovakia. She then missed much of the season due to injury, having developed a stress fracture in her right hip as a result of practicing too many triple loops. She came back to compete at the senior 2007 Finnish Championships, where she won the silver medal. She won the senior silver medal at the 2007 Nordic Championships. She competed at the 2007 Junior Worlds, where she placed 7th.