diff --git a/Control/Monad/RWS/CPS.hs b/Control/Monad/RWS/CPS.hs
--- a/Control/Monad/RWS/CPS.hs
+++ b/Control/Monad/RWS/CPS.hs
@@ -1,4 +1,25 @@
 {-# OPTIONS_GHC -fno-warn-orphans #-}
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Control.Monad.RWS.CPS
+-- Copyright   :  (c) Daniel Mendler 2016,
+--                (c) Andy Gill 2001,
+--                (c) Oregon Graduate Institute of Science and Technology, 2001
+-- License     :  BSD-style (see the file LICENSE)
+--
+-- Maintainer  :  mail@daniel-mendler.de
+-- Stability   :  experimental
+-- Portability :  non-portable (multi-param classes, functional dependencies)
+--
+-- Stricter RWS monad using continuation-passing-style for the
+-- writer output.
+--
+--      Inspired by the paper
+--      /Functional Programming with Overloading and Higher-Order Polymorphism/,
+--        Mark P Jones (<http://web.cecs.pdx.edu/~mpj/>)
+--          Advanced School of Functional Programming, 1995.
+-----------------------------------------------------------------------------
+
 module Control.Monad.RWS.CPS (
   -- * The RWS monad
   RWS,
diff --git a/Control/Monad/Writer/CPS.hs b/Control/Monad/Writer/CPS.hs
--- a/Control/Monad/Writer/CPS.hs
+++ b/Control/Monad/Writer/CPS.hs
@@ -1,4 +1,25 @@
 {-# OPTIONS_GHC -fno-warn-orphans #-}
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Control.Monad.Writer.CPS
+-- Copyright   :  (c) Daniel Mendler 2016,
+--                (c) Andy Gill 2001,
+--                (c) Oregon Graduate Institute of Science and Technology, 2001
+-- License     :  BSD-style (see the file LICENSE)
+--
+-- Maintainer  :  mail@daniel-mendler.de
+-- Stability   :  experimental
+-- Portability :  non-portable (multi-param classes, functional dependencies)
+--
+-- Stricter writer monad using continuation-passing-style for the
+-- writer output.
+--
+--      Inspired by the paper
+--      /Functional Programming with Overloading and Higher-Order Polymorphism/,
+--        Mark P Jones (<http://web.cecs.pdx.edu/~mpj/pubs/springschool.html>)
+--          Advanced School of Functional Programming, 1995.
+-----------------------------------------------------------------------------
+
 module Control.Monad.Writer.CPS (
   -- * The Writer monad
   Writer,
diff --git a/writer-cps-mtl.cabal b/writer-cps-mtl.cabal
--- a/writer-cps-mtl.cabal
+++ b/writer-cps-mtl.cabal
@@ -3,9 +3,9 @@
 -- see: https://github.com/sol/hpack
 
 name:           writer-cps-mtl
-version:        0.1.0.1
+version:        0.1.0.2
 cabal-version:  >= 1.10
-license:        MIT
+license:        BSD3
 license-file:   LICENSE
 tested-with:    GHC == 7.0.4, GHC == 7.2.2, GHC == 7.4.2, GHC == 7.6.3, GHC == 7.8.4, GHC == 7.10.3, GHC == 8.0.1
 author:         Andy Gill, Edward Kmett, Daniel Mendler
@@ -15,7 +15,7 @@
 synopsis:       MonadWriter orphan instances for writer-cps-transformers
 homepage:       https://github.com/minad/writer-cps-mtl#readme
 bug-reports:    https://github.com/minad/writer-cps-mtl/issues
-description:    The WriterT and RWST monad transformers provided by writer-cps-transformers are written in continuation passing style and avoid the space-leak problem of the traditional Control.Monad.Trans.Writer.Strict/Lazy.
+description:    The WriterT and RWST monad transformers provided by writer-cps-transformers are written in continuation passing style and avoid the space-leak problem of the traditional Control.Monad.Trans.Writer.Strict/Lazy. See also (<https://hackage.haskell.org/package/writer-cps-transformers>).
 build-type:     Simple
 
 source-repository head
@@ -31,7 +31,7 @@
       base < 6
     , transformers >= 0.4 && < 0.6
     , mtl >= 2.2 && < 2.4
-    , writer-cps-transformers == 0.1.0.1
+    , writer-cps-transformers >= 0.1 && < 0.3
   exposed-modules:
       Control.Monad.RWS.CPS
       Control.Monad.Writer.CPS