diff --git a/gnu/packages/statistics.scm b/gnu/packages/statistics.scm
index ee6fd4a20ddb6f47674359360ecd553ebd71792e..be7c16a067a6e8803710c4a4444e9302ac3308af 100644
--- a/gnu/packages/statistics.scm
+++ b/gnu/packages/statistics.scm
@@ -1,7 +1,8 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2015, 2016 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2015 Vicente Vera Parra <vicentemvp@gmail.com>
-;;; Copyright ©2016 Andreas Enge <andreas@enge.fr>
+;;; Copyright © 2016 Andreas Enge <andreas@enge.fr>
+;;; Copyright © 2016 Efraim Flashner <efraim@flashner.co.il>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -945,14 +946,13 @@ (define-public r-data-table
 (define-public python-patsy
   (package
     (name "python-patsy")
-    (version "0.4.0")
+    (version "0.4.1")
     (source (origin
               (method url-fetch)
-              (uri (string-append "https://pypi.python.org/packages/source/"
-                                  "p/patsy/patsy-" version ".zip"))
+              (uri (pypi-uri "patsy" version ".zip"))
               (sha256
                (base32
-                "1kbs996xc2haxalmhd19rr1wh5fa4gbbxf81czkf5w4kam7h7wz4"))))
+                "1m6knyq8hbqlx242y4da02j0x86j4qggs1j7q186w3jv0j0c476w"))))
     (build-system python-build-system)
     (arguments
      `(#:phases