diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright 2008-2011 Edward Kmett
+Copyright 2008-2014 Edward Kmett
 
 All rights reserved.
 
diff --git a/either.cabal b/either.cabal
--- a/either.cabal
+++ b/either.cabal
@@ -1,6 +1,6 @@
 name:          either
 category:      Control, Monads
-version:       4.1.1
+version:       4.1.2
 license:       BSD3
 cabal-version: >= 1.6
 license-file:  LICENSE
@@ -9,7 +9,7 @@
 stability:     provisional
 homepage:      http://github.com/ekmett/either/
 bug-reports:   http://github.com/ekmett/either/issues
-copyright:     Copyright (C) 2008-2013 Edward A. Kmett
+copyright:     Copyright (C) 2008-2014 Edward A. Kmett
 synopsis:      An either monad transformer
 description:   An either monad transformer
 build-type:    Simple
@@ -27,17 +27,17 @@
 
 library
   build-depends:
-    base          >= 4       && < 5,
-    monad-control >= 0.3.2,
-    MonadRandom   == 0.1.*,
-    mtl           >= 2.0     && < 2.2,
-    semigroups    >= 0.8.3.1 && < 1,
-    semigroupoids >= 4       && < 5,
-    transformers  >= 0.2     && < 0.4,
+    base              >= 4       && < 5,
+    monad-control     >= 0.3.2,
+    MonadRandom       == 0.1.*,
+    mtl               >= 2.0     && < 2.3,
+    semigroups        >= 0.8.3.1 && < 1,
+    semigroupoids     >= 4       && < 5,
+    transformers      >= 0.2     && < 0.5,
     transformers-base >= 0.4
 
   extensions: CPP
-  exposed-modules: Control.Monad.Trans.Either,
+  exposed-modules: Control.Monad.Trans.Either
                    Data.Either.Combinators
   ghc-options: -Wall
   hs-source-dirs: src
diff --git a/src/Control/Monad/Trans/Either.hs b/src/Control/Monad/Trans/Either.hs
--- a/src/Control/Monad/Trans/Either.hs
+++ b/src/Control/Monad/Trans/Either.hs
@@ -11,7 +11,7 @@
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Control.Monad.Trans.Either
--- Copyright   :  (C) 2008-2013 Edward Kmett
+-- Copyright   :  (C) 2008-2014 Edward Kmett
 -- License     :  BSD-style (see the file LICENSE)
 --
 -- Maintainer  :  Edward Kmett <ekmett@gmail.com>
diff --git a/src/Data/Either/Combinators.hs b/src/Data/Either/Combinators.hs
--- a/src/Data/Either/Combinators.hs
+++ b/src/Data/Either/Combinators.hs
@@ -1,7 +1,7 @@
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Data.Either.Combinators
--- Copyright   :  (c) Gregory Crosswhite, Chris Done, Edward Kmett
+-- Copyright   :  (c) 2010-2014 Gregory Crosswhite, Chris Done, Edward Kmett
 -- License     :  BSD-style
 --
 -- Maintainer  :  ekmett@gmail.com