diff --git a/gnu/packages/python.scm b/gnu/packages/python.scm
index 910e9e81d8..63ad419309 100644
--- a/gnu/packages/python.scm
+++ b/gnu/packages/python.scm
@@ -30,7 +30,7 @@
 ;;; Copyright © 2016, 2017 Stefan Reichör <stefan@xsteve.at>
 ;;; Copyright © 2016 Dylan Jeffers <sapientech@sapientech@openmailbox.org>
 ;;; Copyright © 2016, 2017 Alex Vong <alexvong1995@gmail.com>
-;;; Copyright © 2016, 2017 Arun Isaac <arunisaac@systemreboot.net>
+;;; Copyright © 2016, 2017, 2018 Arun Isaac <arunisaac@systemreboot.net>
 ;;; Copyright © 2016, 2017 Julien Lepiller <julien@lepiller.eu>
 ;;; Copyright © 2016, 2017, 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2016, 2017 Thomas Danckaert <post@thomasdanckaert.be>
@@ -10755,13 +10755,13 @@ and bit flag values.")
 (define-public python-attrs
   (package
     (name "python-attrs")
-    (version "17.2.0")
+    (version "17.4.0")
     (source (origin
               (method url-fetch)
               (uri (pypi-uri "attrs" version))
               (sha256
                (base32
-                "04gx08ikpk26wnq22f7l42gapcvk8iz1512r927k6sadz6cinkax"))))
+                "1jafnn1kzd6qhxgprhx6y6ik1r5m2rilx25syzcmq03azp660y8w"))))
     (build-system python-build-system)
     (native-inputs
      `(("python-pytest" ,python-pytest)