diff --git a/pkgs/tools/inputmethods/keymapper/default.nix b/pkgs/tools/inputmethods/keymapper/default.nix
index 5cedfce20198..8886f5b691a6 100644
--- a/pkgs/tools/inputmethods/keymapper/default.nix
+++ b/pkgs/tools/inputmethods/keymapper/default.nix
@@ -13,13 +13,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "keymapper";
-  version = "3.5.3";
+  version = "4.0.2";
 
   src = fetchFromGitHub {
     owner = "houmain";
     repo = "keymapper";
     rev = finalAttrs.version;
-    hash = "sha256-CfZdLeWgeNwy9tEJ3UDRplV0sRcKE4J6d3CxC9gqdmE=";
+    hash = "sha256-a9CuLchSSfS4w3pZylzdiUr/llMsuU2qDR3mJrAupZk=";
   };
 
   # all the following must be in nativeBuildInputs