In September 2012, Gilles and Poirier won gold at the U.S. Classic. They received two Grand Prix assignments, 2012 Skate Canada International and 2012 Trophée Éric Bompard. They finished fourth and sixth at the two events and then won the silver medal at the 2013 Canadian Championships. They were fifth at the 2013 Four Continents Championships, winning a small bronze medal in the free dance. Appearing at their first World Championships, held in London, Ontario, they placed eighteenth.