diff --git a/pkgs/development/tools/castxml/default.nix b/pkgs/development/tools/castxml/default.nix
index a944550f0792..d26ef76bb8cb 100644
--- a/pkgs/development/tools/castxml/default.nix
+++ b/pkgs/development/tools/castxml/default.nix
@@ -14,13 +14,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "castxml";
-  version = "0.5.0";
+  version = "0.5.1";
 
   src = fetchFromGitHub {
     owner = "CastXML";
     repo = "CastXML";
     rev = "v${finalAttrs.version}";
-    hash = "sha256-NJ6DIZWab9KayFALHON9GfYg6sQOf71SbtfV+3TYKLQ=";
+    hash = "sha256-XZIVOrTY6Ib5Cu1WtTJm5Bqoas1NbNWbvJPWkpFqH2c=";
   };
 
   nativeBuildInputs = [