Competing in the 2016 JGP series, Lajoie/Lagha placed fourth in Yokohama, Japan, and Dresden, Germany. At Skate Canada Challenge 2017, they broke the Canadian record in Junior ice dance, held since 2005 by Tessa Virtue and Scott Moir. They won the junior national title at the 2017 Canadian Championships. In March, they placed fifth in the short dance, seventh in the free dance, and sixth overall at the 2017 World Junior Championships in Taipei, Taiwan.