From ab880e6e6c55577c8e80de67627d59f52b075c52 Mon Sep 17 00:00:00 2001
From: Tobias Geerinckx-Rice <me@tobias.gr>
Date: Sat, 2 Dec 2017 02:08:19 +0100
Subject: [PATCH] gnu: ghc-contravariant: Update to 1.4.

* gnu/packages/haskell.scm (ghc-contravariant): Update to 1.4.
---
 gnu/packages/haskell.scm | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
index f7444ec108..de81e40dcc 100644
--- a/gnu/packages/haskell.scm
+++ b/gnu/packages/haskell.scm
@@ -4026,7 +4026,7 @@ just a @code{Semigroup} are added.")
 (define-public ghc-contravariant
   (package
     (name "ghc-contravariant")
-    (version "1.3.3")
+    (version "1.4")
     (source
      (origin
        (method url-fetch)
@@ -4036,7 +4036,7 @@ just a @code{Semigroup} are added.")
              ".tar.gz"))
        (sha256
         (base32
-         "184hcmhsznqrkmqlc1kza9pb5p591anva574ry8wrh81vqmhwfb5"))))
+         "117fff8kkrvlmr8cb2jpj71z7lf2pdiyks6ilyx89mry6zqnsrp1"))))
     (build-system haskell-build-system)
     (inputs
      `(("ghc-void" ,ghc-void)