diff --git a/pkgs/development/libraries/webkit/src-for-default.nix b/pkgs/development/libraries/webkit/src-for-default.nix
index e757cbdb79c..1a381077933 100644
--- a/pkgs/development/libraries/webkit/src-for-default.nix
+++ b/pkgs/development/libraries/webkit/src-for-default.nix
@@ -1,9 +1,9 @@
 rec {
-   version="r66052";
-   name="webkit-r66052";
-   hash="1c8wmdiq8y38isfyb1dxx6qbi8bs3kmws5vxm0q22gy171rmkjai";
-   url="http://builds.nightly.webkit.org/files/trunk/src/WebKit-r66052.tar.bz2";
-   advertisedUrl="http://builds.nightly.webkit.org/files/trunk/src/WebKit-r66052.tar.bz2";
+   version="r65727";
+   name="webkit-r65727";
+   hash="1cpwcivzdl9phladzn8sfpavz5l0hwdy0ssnxrpi2rpi15nfy5zd";
+   url="http://builds.nightly.webkit.org/files/trunk/src/WebKit-r65727.tar.bz2";
+   advertisedUrl="http://builds.nightly.webkit.org/files/trunk/src/WebKit-r65727.tar.bz2";
   
   
 }