diff --git a/pkgs/development/python-modules/python-stdnum/default.nix b/pkgs/development/python-modules/python-stdnum/default.nix
index 44a6b522a4e..8e68570c5bf 100644
--- a/pkgs/development/python-modules/python-stdnum/default.nix
+++ b/pkgs/development/python-modules/python-stdnum/default.nix
@@ -1,14 +1,14 @@
 { lib, fetchurl, buildPythonPackage, isPy3k }:
 
 buildPythonPackage rec {
-  version = "1.8.1";
+  version = "1.9";
   pname = "python-stdnum";
   name = "${pname}-${version}";
   # Failing tests and dependency issue on Py3k
   disabled = isPy3k;
   src = fetchurl {
     url = "mirror://pypi/p/python-stdnum/${name}.tar.gz";
-    sha256 = "d7162fdb29337aebed65700cc7297016f6cd32cae4ad7aed8f7e7531f0217943";
+    sha256 = "d587a520182f9d8aef7659cca429f4382881589c8883a0a55322b2f94970bdb3";
   };
   meta = {
     homepage = http://arthurdejong.org/python-stdnum/;