diff --git a/Casks/webkit-nightly.rb b/Casks/webkit-nightly.rb
index b267b5b7c..df2e0ccac 100644
--- a/Casks/webkit-nightly.rb
+++ b/Casks/webkit-nightly.rb
@@ -1,6 +1,6 @@
 cask :v1 => 'webkit-nightly' do
-  version 'r191756'
-  sha256 'ab70e5eb5a44be00455219bbb2d46fd7ab5241e28c533b39e46f319735106faa'
+  version 'r191812'
+  sha256 'a10d71d4758e7d9b92bb90b14d06a0c02d60d651429adfc503e6ca267477363c'
 
   url "http://builds.nightly.webkit.org/files/trunk/mac/WebKit-SVN-#{version}.dmg"
   name 'WebKit Nightly'