diff --git a/either-4.5.tar.gz b/either-4.5.tar.gz
deleted file mode 100644
index 5c74271..0000000
--- a/either-4.5.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:ecfb0f4ba8594153db1329b5ca0de08b152dc4cc4326a20e1cfad1bbae41f2d7
-size 10714
diff --git a/either-5.tar.gz b/either-5.tar.gz
new file mode 100644
index 0000000..3523d36
--- /dev/null
+++ b/either-5.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:75cee27641a34f80e6c71f82469a76c7f51d23a522e792e2733269ebf7cbf420
+size 8637
diff --git a/ghc-either.changes b/ghc-either.changes
index 1e0bee7..10b2ca5 100644
--- a/ghc-either.changes
+++ b/ghc-either.changes
@@ -1,57 +1,6 @@
 -------------------------------------------------------------------
-Thu Dec 21 19:12:26 UTC 2017 - psimons@suse.com
+Wed Mar 14 16:57:01 UTC 2018 - psimons@suse.com
 
-- Update to version 4.5.
+- Update either to version 5.
   A more detailed change log is not available.
 
--------------------------------------------------------------------
-Thu Aug  3 15:38:38 UTC 2017 - psimons@suse.com
-
-- Updated with latest spec-cleaner version 0.9.8-8-geadfbbf.
-
--------------------------------------------------------------------
-Mon May 22 08:08:50 UTC 2017 - psimons@suse.com
-
-- Update to version 4.4.1.1 revision 2 with cabal2obs.
-
--------------------------------------------------------------------
-Wed Jan  4 21:24:48 UTC 2017 - psimons@suse.com
-
-- Update to version 4.4.1.1 revision 1 with cabal2obs.
-
--------------------------------------------------------------------
-Sun Jul 10 17:04:19 UTC 2016 - psimons@suse.com
-
-- Update to version 4.4.1.1 revision 0 with cabal2obs.
-
--------------------------------------------------------------------
-Wed May 11 15:13:10 UTC 2016 - mimi.vx@gmail.com
-
-- update to 4.4.1.1
-* Fixed building on newer GHCs. (type synonyms require explicit foralls for unused
-    variables these days)
-
--------------------------------------------------------------------
-Fri Aug  7 06:57:35 UTC 2015 - mimi.vx@gmail.com
-
-- update to 4.4.1
-* Support mmorph
-
--------------------------------------------------------------------
-Sun May 31 20:28:19 UTC 2015 - mimi.vx@gmail.com
-
-- update to 4.3.4.1
-* Support `MonadRandom` 0.4
-
--------------------------------------------------------------------
-Sun May 17 15:21:44 UTC 2015 - mimi.vx@gmail.com
-
-- update to 4.3.4
-* Support `bifunctors` 5, `profunctors` 5, and `semigroupoids` 5.
-* Fixed and enhanced documentation for `eitherToError`.
-
--------------------------------------------------------------------
-Sun Apr 26 17:54:38 UTC 2015 - mimi.vx@gmail.com
-
-- initial commit
-
diff --git a/ghc-either.spec b/ghc-either.spec
index 64d5fa3..12ed55a 100644
--- a/ghc-either.spec
+++ b/ghc-either.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package ghc-either
 #
-# Copyright (c) 2017 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2018 SUSE LINUX GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -17,31 +17,28 @@
 
 
 %global pkg_name either
+%bcond_with tests
 Name:           ghc-%{pkg_name}
-Version:        4.5
+Version:        5
 Release:        0
-Summary:        An either monad transformer
+Summary:        Combinators for working with sums
 License:        BSD-3-Clause
 Group:          Development/Libraries/Haskell
 URL:            https://hackage.haskell.org/package/%{pkg_name}
 Source0:        https://hackage.haskell.org/package/%{pkg_name}-%{version}/%{pkg_name}-%{version}.tar.gz
 BuildRequires:  ghc-Cabal-devel
-BuildRequires:  ghc-MonadRandom-devel
 BuildRequires:  ghc-bifunctors-devel
-BuildRequires:  ghc-exceptions-devel
-BuildRequires:  ghc-free-devel
-BuildRequires:  ghc-mmorph-devel
-BuildRequires:  ghc-monad-control-devel
 BuildRequires:  ghc-mtl-devel
 BuildRequires:  ghc-profunctors-devel
 BuildRequires:  ghc-rpm-macros
 BuildRequires:  ghc-semigroupoids-devel
 BuildRequires:  ghc-semigroups-devel
-BuildRequires:  ghc-transformers-base-devel
-BuildRequires:  ghc-transformers-devel
+%if %{with tests}
+BuildRequires:  ghc-hedgehog-devel
+%endif
 
 %description
-An either monad transformer.
+Combinators for working with sums.
 
 %package devel
 Summary:        Haskell %{pkg_name} library development files
@@ -63,6 +60,9 @@ This package provides the Haskell %{pkg_name} library development files.
 %install
 %ghc_lib_install
 
+%check
+%cabal_test
+
 %post devel
 %ghc_pkg_recache