diff --git a/Casks/firefox-ux.rb b/Casks/firefox-ux.rb
index d0272fc828c06..717482359c413 100644
--- a/Casks/firefox-ux.rb
+++ b/Casks/firefox-ux.rb
@@ -2,6 +2,6 @@ class FirefoxUx < Cask
   url 'https://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-ux/firefox-32.0a1.en-US.mac.dmg'
   homepage 'http://people.mozilla.org/~jwein/ux-nightly/'
   version '32.0a1'
-  sha1 'ab7e12526e86c21333ea8e11d8e7cb0bbcab0dfa'
+  sha256 :no_check
   link 'FirefoxUX.app'
 end