The 2014–15 season was more difficult with only a quarter-finals finish at the Heidenheimer Pokal. At the European Championships in Montreux he lost in the round of 16 to France's Ronan Gustin. The Ukrainian team lost to world No.1 France in the semifinals, then to hosts Switzerland and finished fourth. At the World Championships in Moscow, Nikishyn was eliminated again in the round of 16, losing to the eventual world champion Géza Imre. In the team event, Ukraine defeated Cuba, then Spain. They had a tight 34–33 victory over hosts Russia in the quarter-finals, then prevailed in the semi-final against Italy after a semi-final was marked by several non-combativity calls, which finished on the low score of 15–11. Passivity was also used on both sides in the final against South Korea. Nikishyn entered the match last when the score was 11–7 and, defending against Jung Seung-hwa's attacks, finished on 34–24, allowing Ukraine to win their first world title in men's fencing.