On 9 June 2022, Holý agreed to join League Two side Carlisle United on a two-year deal after manager Paul Simpson released reigning Player of the Year Mark Howard. He was an ever-present throughout the 2022–23 campaign, with Michael Kelly playing in EFL Trophy games. Carlisle secured promotion via the play-offs with victory over Stockport County at Wembley Stadium; they won 5–4 on penalties following a 1–1 draw after extra time, with Holý saving Ryan Rydel's penalty kick.
