diff --git a/pkgs/python-packages.nix b/pkgs/python-packages.nix
--- a/pkgs/python-packages.nix
+++ b/pkgs/python-packages.nix
@@ -749,11 +749,11 @@ self: super: {
     };
   };
   "setuptools" = super.buildPythonPackage {
-    name = "setuptools-40.6.2";
+    name = "setuptools-40.6.3";
     doCheck = false;
     src = fetchurl {
-      url = "https://files.pythonhosted.org/packages/b0/d1/8acb42f391cba52e35b131e442e80deffbb8d0676b93261d761b1f0ef8fb/setuptools-40.6.2.zip";
-      sha256 = "0r2c5hapirlzm34h7pl1lgkm6gk7bcrlrdj28qgsvaqg3f74vfw6";
+      url = "https://files.pythonhosted.org/packages/37/1b/b25507861991beeade31473868463dad0e58b1978c209de27384ae541b0b/setuptools-40.6.3.zip";
+      sha256 = "1y085dnk574sxw9aymdng9gijvrsbw86hsv9hqnhv7y4d6nlsirv";
     };
     meta = {
       license = [ pkgs.lib.licenses.mit ];