 Following this, the club were relegated to the Scottish Championship on the final day of the season.Ahead of the 2018–19 season, Tansey was told by the club's management that he has no future at Aberdeen and expected to leave the club, which never happened over the summer.Tansey continued to recover from a groin injury for the rest of 2018 and he was released by Aberdeen on 8 January 2019, having made no appearance for the side this season.