diff --git a/pkgs/by-name/mo/mos/package.nix b/pkgs/by-name/mo/mos/package.nix
index 4ac9ee5d042f..deaae5b146e1 100644
--- a/pkgs/by-name/mo/mos/package.nix
+++ b/pkgs/by-name/mo/mos/package.nix
@@ -7,11 +7,11 @@
 }:
 stdenvNoCC.mkDerivation (finalAttrs: {
   pname = "mos";
-  version = "4.0.2";
+  version = "4.2.0";
 
   src = fetchurl {
-    url = "https://github.com/Caldis/Mos/releases/download/${finalAttrs.version}/Mos.Versions.${finalAttrs.version}-20260308.2.zip";
-    hash = "sha256-1DBFRIRjR9Fcl5DtHeuwn3qZgQ+jWRujYFzjPqa3/dY=";
+    url = "https://github.com/Caldis/Mos/releases/download/${finalAttrs.version}/Mos.Versions.${finalAttrs.version}-20260505.1.zip";
+    hash = "sha256-SswAG7V+7LbAbPcHwS4Kr+0TFg6XWhYTEK7lVC3lYCQ=";
   };
   sourceRoot = ".";
 
@@ -26,8 +26,6 @@ stdenvNoCC.mkDerivation (finalAttrs: {
     runHook postInstall
   '';
 
-  passthru.updateScript = nix-update-script { };
-
   meta = {
     description = "Smooths scrolling and set mouse scroll directions independently on macOS";
     homepage = "https://mos.caldis.me/";