diff -u xmonad-0.10/xmonad.cabal\~ xmonad-0.10/xmonad.cabal
--- xmonad-0.10/xmonad.cabal~	2011-11-19 08:14:36.000000000 +0900
+++ xmonad-0.10/xmonad.cabal	2012-06-11 10:46:59.925650241 +0900
@@ -46,7 +46,7 @@
         build-depends: base < 5 && >=3, containers, directory, process, filepath, extensible-exceptions
     else
         build-depends: base < 3
-    build-depends: X11>=1.5.0.0 && < 1.6, mtl, unix,
+    build-depends: X11>=1.5.0.0 && < 1.7, mtl, unix,
                    utf8-string >= 0.3 && < 0.4
 
     if true