diff --git a/json-rpc-server.cabal b/json-rpc-server.cabal
--- a/json-rpc-server.cabal
+++ b/json-rpc-server.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                json-rpc-server
-version:             0.2.1.0
+version:             0.2.2.0
 license:             MIT
 license-file:        LICENSE
 category:            Network, JSON
@@ -37,7 +37,7 @@
   exposed-modules:     Network.JsonRpc.Server
   other-modules:       Network.JsonRpc.Types
   build-depends:       base >=4.3 && <4.9,
-                       aeson >=0.6 && <0.10,
+                       aeson >=0.6 && <0.11,
                        deepseq >= 1.1 && <1.5,
                        bytestring >=0.9 && <0.11,
                        mtl >=2.2.1 && <2.3,
@@ -65,10 +65,10 @@
   type:                exitcode-stdio-1.0
   build-depends:       base >=4.3 && <4.9,
                        json-rpc-server,
-                       HUnit >=1.2 && <1.3,
+                       HUnit >=1.2 && <1.4,
                        test-framework >=0.7 && <0.9,
                        test-framework-hunit >=0.3 && <0.4,
-                       aeson >=0.6 && <0.10,
+                       aeson >=0.6 && <0.11,
                        bytestring >=0.9 && <0.11,
                        mtl >=2.2.1 && <2.3,
                        text >=0.11 && <1.3,
diff --git a/src/Network/JsonRpc/Server.hs b/src/Network/JsonRpc/Server.hs
--- a/src/Network/JsonRpc/Server.hs
+++ b/src/Network/JsonRpc/Server.hs
@@ -67,9 +67,10 @@
 -- by-name arguments are ignored.
 
 -- $example
--- Here is an example with three JSON-RPC methods. It reads requests
--- from stdin and writes responses to stdout.  Compile it with the
--- build flag @demo@.
+-- Here is an example with three JSON-RPC methods that all have
+-- access to an 'MVar' counter.  The program reads requests from
+-- stdin and writes responses to stdout. Compile it with the build
+-- flag @demo@.
 --   
 -- > {-# LANGUAGE OverloadedStrings #-}
 -- >