diff --git a/pkgs/applications/misc/klayout/default.nix b/pkgs/applications/misc/klayout/default.nix
index 2e98be7b558..bb7d4105780 100644
--- a/pkgs/applications/misc/klayout/default.nix
+++ b/pkgs/applications/misc/klayout/default.nix
@@ -5,13 +5,13 @@
 
 mkDerivation rec {
   pname = "klayout";
-  version = "0.28.5";
+  version = "0.28.6";
 
   src = fetchFromGitHub {
     owner = "KLayout";
     repo = "klayout";
     rev = "v${version}";
-    hash = "sha256-fjKxQ3oVtnFwzLeeE6kN0jKE5PIfBZubTF54KO+k/DE=";
+    hash = "sha256-Errpn2GHxVncum+6zriM9OrhrCDK8EtD2ZYVYPoyabk=";
   };
 
   postPatch = ''