diff --git a/pkgs/applications/networking/browsers/firefox/3.6.nix b/pkgs/applications/networking/browsers/firefox/3.6.nix
index 4bcf6058e3ee..f56dda74fda8 100644
--- a/pkgs/applications/networking/browsers/firefox/3.6.nix
+++ b/pkgs/applications/networking/browsers/firefox/3.6.nix
@@ -12,14 +12,14 @@
 
 rec {
 
-  firefoxVersion = "3.6.4";
+  firefoxVersion = "3.6.6";
   
-  xulVersion = "1.9.2.4"; # this attribute is used by other packages
+  xulVersion = "1.9.2.6"; # this attribute is used by other packages
 
   
   src = fetchurl {
     url = "http://releases.mozilla.org/pub/mozilla.org/firefox/releases/${firefoxVersion}/source/firefox-${firefoxVersion}.source.tar.bz2";
-    sha1 = "c73e4cf4a8e55b5a192fe59d38bef1d06f43e842";
+    sha256 = "1cq6mg4p8x6hxxya12wlh1c5m6prvb7wpgnnrm8lys20z5qp5f2r";
   };