diff --git a/pkgs/applications/networking/browsers/chromium/default.nix b/pkgs/applications/networking/browsers/chromium/default.nix
index 33f9283b47a..59b05e94911 100644
--- a/pkgs/applications/networking/browsers/chromium/default.nix
+++ b/pkgs/applications/networking/browsers/chromium/default.nix
@@ -86,7 +86,7 @@ let
 
   # XXX: this reverts r151720 to prevent http://crbug.com/143623
   maybeRevertZlibChanges = let
-    below22 = versionOlder sourceInfo.version "22.0.0.0";
+    below22_91 = versionOlder sourceInfo.version "22.0.1229.91";
     patch = fetchurl {
       name = "revert-r151720";
       url = "http://git.chromium.org/gitweb/?p=chromium.git;a=commitdiff_plain;"
@@ -94,7 +94,7 @@ let
           + "h=0fabb4fda7059a8757422e8a44e70deeab28e698";
       sha256 = "0n0d6mkg89g8q63cifapzpg9dxfs2n6xvk4k13szhymvf67b77pf";
     };
-  in optional (!below22) patch;
+  in optional (below22_91) patch;
 
 in stdenv.mkDerivation rec {
   name = "${packageName}-${version}";
diff --git a/pkgs/applications/networking/browsers/chromium/sources.nix b/pkgs/applications/networking/browsers/chromium/sources.nix
index e4e72617bc4..9d2a7893102 100644
--- a/pkgs/applications/networking/browsers/chromium/sources.nix
+++ b/pkgs/applications/networking/browsers/chromium/sources.nix
@@ -1,18 +1,18 @@
 # This file is autogenerated from update.sh in the same directory.
 {
   dev = {
-    version = "23.0.1262.0";
-    url = "http://commondatastorage.googleapis.com/chromium-browser-official/chromium-23.0.1262.0.tar.bz2";
-    sha256 = "19sqiv2vg9qy1kj6s12sq5aknvp3969yw26szwp54ipfv7lxqjh6";
+    version = "23.0.1271.10";
+    url = "http://commondatastorage.googleapis.com/chromium-browser-official/chromium-23.0.1271.10.tar.bz2";
+    sha256 = "1jm9fhnq978lfn21xripf7l2n362axinggnxlz7rcc9as1y086y3";
   };
   beta = {
-    version = "22.0.1229.56";
-    url = "http://commondatastorage.googleapis.com/chromium-browser-official/chromium-22.0.1229.56.tar.bz2";
-    sha256 = "0wynq27yz1aslsnrjmf47dwbglblpfida2kmgv23l804mgdj19gv";
+    version = "22.0.1229.91";
+    url = "http://commondatastorage.googleapis.com/chromium-browser-official/chromium-22.0.1229.91.tar.bz2";
+    sha256 = "1b47rb5hw0k2fwc4jvmjpmxbhmqxgkz66j3mrjy4f8im41hmndyw";
   };
   stable = {
-    version = "21.0.1180.89";
-    url = "http://commondatastorage.googleapis.com/chromium-browser-official/chromium-21.0.1180.89.tar.bz2";
-    sha256 = "1i9mjbjj3aywg03hd59m9j5gq5b5fl8nvw56g47q8s9k1bcsik0n";
+    version = "22.0.1229.79";
+    url = "http://commondatastorage.googleapis.com/chromium-browser-official/chromium-22.0.1229.79.tar.bz2";
+    sha256 = "0f7py2hd7fnx5z0xrg2vwf675xbg9xvamx79jjyzbpljh32b3jh6";
   };
 }