diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 5ca33ba23a53..7b837d380f66 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -3827,13 +3827,20 @@ rec {
   };
 
   hcs_utils = buildPythonPackage rec {
-    name = "hcs_utils-1.3";
+    name = "hcs_utils-1.5";
 
     src = fetchurl {
-      url    = "https://pypi.python.org/packages/source/h/hcs_utils/hcs_utils-1.3.tar.gz";
-      sha256 = "0mcjfc0ssil86i74dg323z7mikkw1xazqyr92347x1y33zyffgxh";
+      url    = "https://pypi.python.org/packages/source/h/hcs_utils/${name}.tar.gz";
+      sha256 = "1d2za9crkgzildx610w3zif2i8phcqhh6n8nzg3yvy2mg0s18mkl";
     };
 
+    preBuild = ''
+      export LOCALE_ARCHIVE=${pkgs.glibcLocales}/lib/locale/locale-archive
+      export LC_ALL="en_US.UTF-8"
+    '';
+
+    buildInputs = [ six ];
+
     meta = with stdenv.lib; {
       description = "Library collecting some useful snippets";
       homepage    = https://pypi.python.org/pypi/hcs_utils/1.3;