diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index a0d07451299d..7b92c9146fa8 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -7244,11 +7244,11 @@ in modules // {
   };
 
   chardet = buildPythonPackage rec {
-    name = "chardet-2.1.1";
+    name = "chardet-2.3.0";
 
     src = pkgs.fetchurl {
       url = "http://pypi.python.org/packages/source/c/chardet/${name}.tar.gz";
-      md5 = "295367fd210d20f3febda615a88e1ef0";
+      md5 = "25274d664ccb5130adae08047416e1a8";
     };
 
     meta = {