From b88b7f4986eca386c40504063d3417500f777ee5 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Mon, 14 Oct 2013 08:47:47 +0200
Subject: [PATCH] haskell-either: update to version 4.0

---
 pkgs/development/libraries/haskell/either/default.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/libraries/haskell/either/default.nix b/pkgs/development/libraries/haskell/either/default.nix
index bfc0f4c593b..93dfd043c90 100644
--- a/pkgs/development/libraries/haskell/either/default.nix
+++ b/pkgs/development/libraries/haskell/either/default.nix
@@ -3,8 +3,8 @@
 
 cabal.mkDerivation (self: {
   pname = "either";
-  version = "3.4.2";
-  sha256 = "0h5hrjvcbgyn0fpn6xlm2a4447xl4qyhiadq2vlywqvkvgnh3x3k";
+  version = "4.0";
+  sha256 = "07axaq43cqyglndr5az7ns4mvkjmybq6z8s32l1jxc5x7532scwr";
   buildDepends = [
     MonadRandom mtl semigroupoids semigroups transformers
   ];