diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
index dcd21e2a46..f366a9f391 100644
--- a/gnu/packages/haskell.scm
+++ b/gnu/packages/haskell.scm
@@ -6,6 +6,7 @@
 ;;; Copyright © 2016 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2016 ng0 <ng0@we.make.ritual.n0.is>
 ;;; Copyright © 2016 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2015, 2016 Ricardo Wurmus <rekado@elephly.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -6152,14 +6153,14 @@ for X.509 certificates.")
 (define-public ghc-tls
   (package
     (name "ghc-tls")
-    (version "1.3.3")
+    (version "1.3.8")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://hackage.haskell.org/package/"
                                   "tls/tls-" version ".tar.gz"))
               (sha256
                (base32
-                "096ay54bwy6qi9z8ypncww3ls853zj37yaficvcg7qcqj42zn0wz"))))
+                "1rdidf18i781c0vdvy9yn79yh08hmcacf6fp3sgghyiy3h0wyh5l"))))
     (build-system haskell-build-system)
     (propagated-inputs
      `(("ghc-mtl" ,ghc-mtl)