diff --git a/Casks/firefox-beta.rb b/Casks/firefox-beta.rb
index ab3db0258..93ce10dd5 100644
--- a/Casks/firefox-beta.rb
+++ b/Casks/firefox-beta.rb
@@ -1,7 +1,7 @@
 class FirefoxBeta < Cask
-  url 'https://download.mozilla.org/?product=firefox-28.0b9&os=osx&lang=en-US'
+  url 'https://download.mozilla.org/?product=firefox-29.0b1&os=osx&lang=en-US'
   homepage 'https://www.mozilla.org/en-US/firefox/beta/'
-  version '28.0b9'
-  sha256 '860fdad8b9dc5606b0dbaf0dd39341283c37bc8d197f0ca252a68f353cb6fa98'
+  version '29.0b1'
+  sha256 '5f13ff1fdae28e09c50ebaf915802e275918ca32e411fcd7a61f466efe68a042'
   link 'Firefox.app'
 end