diff --git a/pkgs/by-name/ch/chameleon-cli/package.nix b/pkgs/by-name/ch/chameleon-cli/package.nix
index 7f5abc9b02f1..4b2264e7475a 100644
--- a/pkgs/by-name/ch/chameleon-cli/package.nix
+++ b/pkgs/by-name/ch/chameleon-cli/package.nix
@@ -21,14 +21,14 @@ in
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "chameleon-cli";
-  version = "2.1.0-unstable-2025-09-12";
+  version = "2.1.0-unstable-2025-10-13";
 
   src = fetchFromGitHub {
     owner = "RfidResearchGroup";
     repo = "ChameleonUltra";
-    rev = "8998621a47011008df23be9a56b1fc9ce1a64ac3";
+    rev = "97dfe5b9a41a6ea5535c6842afbe420098c4844b";
     sparseCheckout = [ "software" ];
-    hash = "sha256-I+sWxwFdZ5nozxv8Z1TsEHpMbcMHGhKAw3xI7DzyjIA=";
+    hash = "sha256-zFExh0vhzNcf02izgO4P4cWq3LoQpEHb4ZW7hsHZqNA=";
   };
 
   sourceRoot = "${finalAttrs.src.name}/software";