diff --git a/Casks/x-quartz.rb b/Casks/x-quartz.rb
index 19bb216002e..4e317fa6e23 100644
--- a/Casks/x-quartz.rb
+++ b/Casks/x-quartz.rb
@@ -1,5 +1,5 @@
 class XQuartz < Cask
-  url 'http://xquartz.macosforge.org/downloads/SL/XQuartz-2.7.1.dmg'
+  url 'http://xquartz.macosforge.org/downloads/SL/XQuartz-2.7.3.dmg'
   homepage 'http://xquartz.macosforge.org/'
-  version '2.7.1'
+  version '2.7.3'
 end