diff --git a/Casks/firefox-beta-uk.rb b/Casks/firefox-beta-uk.rb
index 8ca128ddf..7a343e49c 100644
--- a/Casks/firefox-beta-uk.rb
+++ b/Casks/firefox-beta-uk.rb
@@ -1,6 +1,6 @@
 cask 'firefox-beta-uk' do
-  version '47.0b2'
-  sha256 'b2b062ef8e2fb3adb84e9879ddb1c0319fcc50aabf356edb24a0d23b5128e141'
+  version '47.0b3'
+  sha256 'eeaff5165b419c590a3825e15ce2d57bc6ba66a06f83d3e7198fef1c275b2891'
 
   url "https://download.mozilla.org/?product=firefox-#{version}-SSL&os=osx&lang=uk"
   name 'Mozilla Firefox'