diff --git a/Formula/clutter-gtk.rb b/Formula/clutter-gtk.rb
index 6c0ecd6f97..3ab8e3be12 100644
--- a/Formula/clutter-gtk.rb
+++ b/Formula/clutter-gtk.rb
@@ -1,8 +1,8 @@
 class ClutterGtk < Formula
   desc "GTK+ integration library for Clutter"
   homepage "https://wiki.gnome.org/Projects/Clutter"
-  url "https://download.gnome.org/sources/clutter-gtk/1.6/clutter-gtk-1.6.4.tar.xz"
-  sha256 "52fc9b35d301737a221bb6c24abafafe23e4bd0a5e2060bba3860b6cac7b32aa"
+  url "https://download.gnome.org/sources/clutter-gtk/1.6/clutter-gtk-1.6.6.tar.xz"
+  sha256 "9440a68600f58d00fe0af35383738943e8ead9907f4cf507a102d96822434a28"
 
   bottle do
     sha256 "af7aba2417b205ad7987c43cad168a4cc6cc3ef6b5289fad758a123ca60ac8bc" => :el_capitan