diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2016 Tom Sydney Kerckhove
+Copyright (c) 2016-2020 Tom Sydney Kerckhove
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/validity-path.cabal b/validity-path.cabal
--- a/validity-path.cabal
+++ b/validity-path.cabal
@@ -1,22 +1,20 @@
 cabal-version: 1.12
 
--- This file has been generated from package.yaml by hpack version 0.31.2.
+-- This file has been generated from package.yaml by hpack version 0.33.0.
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 95594605f35327f048b5baa0aa6c9b48d481e101c5df9ab5ba0390dc02bfb493
+-- hash: c0e2ac21de75bcd3ad800365b61b50585dc00f38047c5c2a4f051eecbaccbe9d
 
 name:           validity-path
-version:        0.4.0.0
+version:        0.4.0.1
 synopsis:       Validity instances for Path
-description:    Please see README.md
 category:       Validity
 homepage:       https://github.com/NorfairKing/validity#readme
 bug-reports:    https://github.com/NorfairKing/validity/issues
 author:         Tom Sydney Kerckhove
-maintainer:     syd.kerckhove@gmail.com,
-                nick.van.den.broeck666@gmail.com
-copyright:      Copyright: (c) 2016-2018 Tom Sydney Kerckhove
+maintainer:     syd@cs-syd.eu
+copyright:      Copyright: (c) 2016-2020 Tom Sydney Kerckhove
 license:        MIT
 license-file:   LICENSE
 build-type:     Simple
@@ -49,7 +47,7 @@
       test
   ghc-options: -threaded -rtsopts -with-rtsopts=-N -Wall
   build-depends:
-      base
+      base >=4.7 && <5
     , filepath >=1.3
     , genvalidity-hspec
     , hspec