He made just one league appearance in the early part of the 2010–11 season, partly due to a recurrence of the back injury. Stack regained his place in the Hibs team in February 2011, as new manager Colin Calderwood decided to give opportunities to each of his goalkeepers under a rotation policy. Soon afterwards, however, Stack suffered a shoulder injury that required surgery. Despite that setback, Stack agreed a new one-year contract with Hibs during May 2011. Stack played regularly during the 2011–12 season, but suffered a thigh injury during the Scottish Cup semi-final that caused him to miss the last five league games and the 2012 Scottish Cup Final. Stack left Hibernian at the end of his contract in May 2012.