diff --git a/Casks/webkit-nightly.rb b/Casks/webkit-nightly.rb
index 566763dcc..cb8f49d35 100644
--- a/Casks/webkit-nightly.rb
+++ b/Casks/webkit-nightly.rb
@@ -1,6 +1,6 @@
 cask :v1 => 'webkit-nightly' do
-  version 'r191696'
-  sha256 '5097c383e32b64f1874c36d53243090007b6eafbca149d40add679ee44bba88e'
+  version r191756'
+  sha256 'ab70e5eb5a44be00455219bbb2d46fd7ab5241e28c533b39e46f319735106faa'
 
   url "http://builds.nightly.webkit.org/files/trunk/mac/WebKit-SVN-#{version}.dmg"
   name 'WebKit Nightly'