Gibbs started in the 2014 FA Community Shield on 10 August, in which Arsenal beat Manchester City 3–0 at Wembley Stadium. On 23 October 2014, he scored his first goal of the season, an 89th-minute volleyed equaliser in a 2–1 win in a group stage match in the UEFA Champions League away at Anderlecht. He was an unused substitute for the 2015 FA Cup Final on 30 May, as Arsenal beat Aston Villa 4–0 at Wembley Stadium.