diff --git a/pkgs/development/nim-packages/karax/default.nix b/pkgs/development/nim-packages/karax/default.nix
index 8e8f11b228a..695386826f5 100644
--- a/pkgs/development/nim-packages/karax/default.nix
+++ b/pkgs/development/nim-packages/karax/default.nix
@@ -3,6 +3,6 @@
 fetchFromGitHub {
   owner = "karaxnim";
   repo = "karax";
-  rev = "fa4a2dc";
-  sha256 = "0xl83jsfb9l8kb0nfan9h5y6v96iz4psng2fx06a0qmig4993408";
+  rev = "5cf360c";
+  hash = "sha256-TPwQSqi7ciR6QMklWi/bOJnyzCAT1lZyxW4DTiWTALo=";
 }