diff --git a/pkgs/development/tools/knightos/z80e/default.nix b/pkgs/development/tools/knightos/z80e/default.nix
index 6aad8f687e7..d8f6a127403 100644
--- a/pkgs/development/tools/knightos/z80e/default.nix
+++ b/pkgs/development/tools/knightos/z80e/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "z80e";
-  version = "0.5.0";
+  version = "0.5.2";
 
   src = fetchFromGitHub {
     owner = "KnightOS";
     repo = "z80e";
     rev = version;
-    sha256 = "18nnip6nv1pq19bxgd07fv7ci3c5yj8d9cip97a4zsfab7bmbq6k";
+    sha256 = "0gdv17ynjd6zf3i4hkimd89xkrd8kxas3bf8d5sq54fdicapvkzc";
   };
 
   nativeBuildInputs = [ cmake knightos-scas ];