diff --git a/pkgs/by-name/lu/luau/package.nix b/pkgs/by-name/lu/luau/package.nix
index e20e7930de13..5fba70890b06 100644
--- a/pkgs/by-name/lu/luau/package.nix
+++ b/pkgs/by-name/lu/luau/package.nix
@@ -9,13 +9,13 @@
 
 stdenv.mkDerivation rec {
   pname = "luau";
-  version = "0.664";
+  version = "0.666";
 
   src = fetchFromGitHub {
     owner = "luau-lang";
     repo = "luau";
     rev = version;
-    hash = "sha256-VmeUO7zkBG0NojzpnfR+eVzoRhNpJh+7HwEunL/Ylqw=";
+    hash = "sha256-++4PwlCxNq31T0UQUHcvrUnY/ADdnQCtekGiGTPRmv0=";
   };
 
   nativeBuildInputs = [ cmake ];