diff --git a/newtype-generics.cabal b/newtype-generics.cabal
--- a/newtype-generics.cabal
+++ b/newtype-generics.cabal
@@ -1,5 +1,5 @@
 Name:                newtype-generics
-Version:             0.4.0.1
+Version:             0.4.1
 Synopsis:            A typeclass and set of functions for working with newtypes, with generics support.
 Description:         Per Conor McBride, the Newtype typeclass represents the packing and unpacking of a newtype,
                      and allows you to operatate under that newtype with functions such as ala.
@@ -7,7 +7,7 @@
                      for the original newtype package, and a better alternative to newtype-th.
 License:             BSD3
 License-file:        LICENSE
-Author:              Darius Jahandarie, Conor McBride, João Cristovão
+Author:              Darius Jahandarie, Conor McBride, João Cristóvão
 Maintainer:          João Cristóvão <jmacristovao@gmail.com>
 -- Copyright:           
 Category:            Control
@@ -17,7 +17,9 @@
 
 Library
   Exposed-modules:     Control.Newtype
-  Build-depends:       base >= 4.5 && < 4.8
+  Build-depends:       base >= 4.5 && < 4.9
+  -- Other-modules:       
+  -- Build-tools:         
   Ghc-options: -Wall
   default-language:   Haskell2010
 
@@ -29,9 +31,7 @@
   type:               exitcode-stdio-1.0
   main-is:            main.hs
   hs-source-dirs:     test,.
-  build-depends:      base   >= 4.5 && < 4.8
-                    , hspec  >= 1.9 && < 1.10
-                    , HUnit  >= 1.2.5.2 && < 1.3
+  build-depends:      base              >= 4.5 && < 4.9
+                    , hspec             >= 2.1 && < 2.3
+                    , HUnit             >= 1.2.5.2 && < 1.3
   default-language:   Haskell2010
-
-