diff --git a/pkgs/applications/networking/browsers/chromium/sources.nix b/pkgs/applications/networking/browsers/chromium/sources.nix
index 54d9f44f7fb..780c3b62a30 100644
--- a/pkgs/applications/networking/browsers/chromium/sources.nix
+++ b/pkgs/applications/networking/browsers/chromium/sources.nix
@@ -1,14 +1,14 @@
 # This file is autogenerated from update.sh in the same directory.
 {
   dev = {
-    version = "29.0.1516.3";
-    url = "http://commondatastorage.googleapis.com/chromium-browser-official/chromium-29.0.1516.3.tar.xz";
-    sha256 = "0pdn9c6v0v55d7g4amivxrv132bpj9sfqywk5b8l6kqfjq28mw5k";
+    version = "29.0.1521.3";
+    url = "http://commondatastorage.googleapis.com/chromium-browser-official/chromium-29.0.1521.3.tar.xz";
+    sha256 = "0szc3g24jlhcp8cgijdv0q9rfn3mhp2kjyc85ml4snskkpasfrv3";
   };
   beta = {
-    version = "28.0.1500.36";
-    url = "http://commondatastorage.googleapis.com/chromium-browser-official/chromium-28.0.1500.36.tar.xz";
-    sha256 = "1bz9w46ps8gj056hfwbcj4myyxyr7y759nagz9idraia8116m3pp";
+    version = "28.0.1500.45";
+    url = "http://commondatastorage.googleapis.com/chromium-browser-official/chromium-28.0.1500.45.tar.xz";
+    sha256 = "01sxqv6i7m5h0jsypg801w2ivbrir37wdi4ijd5yvprkyzbd90zi";
   };
   stable = {
     version = "27.0.1453.110";