diff --git a/pkgs/development/libraries/haskell/neither/default.nix b/pkgs/development/libraries/haskell/neither/default.nix
index 6bea3c10844..7d119b49e44 100644
--- a/pkgs/development/libraries/haskell/neither/default.nix
+++ b/pkgs/development/libraries/haskell/neither/default.nix
@@ -1,10 +1,10 @@
-{ cabal, failure, monadPeel, transformers }:
+{ cabal, failure, transformers }:
 
 cabal.mkDerivation (self: {
   pname = "neither";
-  version = "0.2.0";
-  sha256 = "0a2lyx3dvgzj4g6p69x1fma4rmwxrykji3hc4diqgc4hx02p16jh";
-  buildDepends = [ failure monadPeel transformers ];
+  version = "0.3.0";
+  sha256 = "0lak4y0k4cisr27vw2bnpd0pa1kkgv8r96z7vf19wg7brzarx71l";
+  buildDepends = [ failure transformers ];
   meta = {
     homepage = "http://github.com/snoyberg/neither";
     description = "Provide versions of Either with good monad and applicative instances";