In the 2013–14 season Jean-Philippe Daurelle replaced Cyril Tahon as coach of the French women's sabre team, which Lembach described as “a breath of fresh air”. Under his coaching Lembach won a silver medal in the Dakar World Cup and climbed on the podium in Chicago and Beijing. In the European Championships held in her native Strasbourg, Lembach defeated teammate Cécilia Berder, but failed in the second round against No.1 seed Vassiliki Vougiouka and finished 13th. In the team event, France defeated Germany, but were overcome in the semi-finals by reigning champions Russia. They prevailed over Poland to come away with a bronze medal. In the World Championships at Kazan, she fell in the second round again, this time at the hands of Małgorzata Kozaczuk of Poland. In the team event France defeated Hungary, then created an upset by beating Russia in the quarter-finals and Italy in the semi-finals. Their winning streak was snapped in the final by the United States led by twice-Olympic champion Mariel Zagunis and France came away with a silver medal.