diff --git a/README.md b/README.md
new file mode 100644
--- /dev/null
+++ b/README.md
@@ -0,0 +1,9 @@
+*This package is useful, but deprecated. In new code, please use [threads][1]
+instead.*
+
+A simple thread management API inspired by the one in [chapter 24][2] of
+[Real World Haskell][3].
+
+[1]: http://hackage.haskell.org/package/threads
+[2]: http://book.realworldhaskell.org/read/concurrent-and-multicore-programming.html
+[3]: http://book.realworldhaskell.org/
diff --git a/src/Control/Concurrent/ThreadManager.hs b/src/Control/Concurrent/ThreadManager.hs
--- a/src/Control/Concurrent/ThreadManager.hs
+++ b/src/Control/Concurrent/ThreadManager.hs
@@ -1,11 +1,8 @@
-{-|
-  A simple thread management API inspired by the one in chapter
-  24 of /Real World Haskell/.
-
-  See <http://book.realworldhaskell.org/read/concurrent-and-multicore-programming.html>.
-
-  Intended to be imported qualified (suggestion: TM).
- -}
+-- | Intended to be imported qualified, as in
+--
+-- @
+-- import qualified Control.Concurrent.ThreadManager as TM
+-- @
 
 module Control.Concurrent.ThreadManager
   ( ThreadManager
diff --git a/threadmanager.cabal b/threadmanager.cabal
--- a/threadmanager.cabal
+++ b/threadmanager.cabal
@@ -1,5 +1,5 @@
 name:         threadmanager
-version:      0.1.6
+version:      0.1.7
 category:     Concurrency
 
 author:       _Real World Haskell_, http://www.realworldhaskell.org/
@@ -10,17 +10,22 @@
 
 synopsis:     (deprecated in favor of 'threads') Simple thread management
 description:
-  This package is useful, but deprecated. In new code, please use /threads/
-  instead. See <http://hackage.haskell.org/package/threads>.
+  This package is useful, but deprecated. In new code, please use
+  <http://hackage.haskell.org/package/threads threads> instead.
   .
-  A simple thread management API inspired by the one in chapter 24 of
-  /Real World Haskell/. See <http://book.realworldhaskell.org/read/concurrent-and-multicore-programming.html>.
+  A simple thread management API inspired by the one in
+  <http://book.realworldhaskell.org/read/concurrent-and-multicore-programming.html chapter 24 of Real World Haskell>.
 
 cabal-version: >= 1.10
 build-type:    Simple
 
 --------------------------------------------------------------------------------
 
+extra-source-files:
+  README.md
+
+--------------------------------------------------------------------------------
+
 library
   default-language: Haskell2010
 
@@ -35,8 +40,8 @@
     src
 
   build-depends:
-    base       == 4.*,
-    containers == 0.*
+    base        > 3 && < 5,
+    containers == 0.5.*
 
 --------------------------------------------------------------------------------