diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-CmdTheLine v0.2.1
+CmdTheLine v0.2.1.1
 ===============
 
 [![Build Status](https://secure.travis-ci.org/eli-frey/cmdtheline.png)](http://travis-ci.org/eli-frey/cmdtheline)
diff --git a/cmdtheline.cabal b/cmdtheline.cabal
--- a/cmdtheline.cabal
+++ b/cmdtheline.cabal
@@ -1,5 +1,5 @@
 Name: cmdtheline
-Version: 0.2.1
+Version: 0.2.1.1
 Synopsis: Declarative command-line option parsing and documentation library.
 Description:
   CmdTheLine aims to remove tedium from the definition of command-line
@@ -61,7 +61,7 @@
 Library
   hs-source-dirs: src
   extensions:     FlexibleInstances
-  build-depends:  base >= 4.5 && < 5, containers >= 0.4 && < 0.5,
+  build-depends:  base >= 4.5 && < 5, containers >= 0.4 && < 0.6,
                   parsec >= 3.1 && < 3.2, pretty >= 1.1 && < 1.2,
                   process >= 1.1, directory >= 1.1,
                   transformers >= 0.3 && < 0.4, filepath >= 1.3 && < 1.4
diff --git a/src/System/Console/CmdTheLine.hs b/src/System/Console/CmdTheLine.hs
--- a/src/System/Console/CmdTheLine.hs
+++ b/src/System/Console/CmdTheLine.hs
diff --git a/src/System/Console/CmdTheLine/Arg.hs b/src/System/Console/CmdTheLine/Arg.hs
--- a/src/System/Console/CmdTheLine/Arg.hs
+++ b/src/System/Console/CmdTheLine/Arg.hs
diff --git a/src/System/Console/CmdTheLine/ArgVal.hs b/src/System/Console/CmdTheLine/ArgVal.hs
--- a/src/System/Console/CmdTheLine/ArgVal.hs
+++ b/src/System/Console/CmdTheLine/ArgVal.hs
diff --git a/src/System/Console/CmdTheLine/CmdLine.hs b/src/System/Console/CmdTheLine/CmdLine.hs
--- a/src/System/Console/CmdTheLine/CmdLine.hs
+++ b/src/System/Console/CmdTheLine/CmdLine.hs
diff --git a/src/System/Console/CmdTheLine/Common.hs b/src/System/Console/CmdTheLine/Common.hs
--- a/src/System/Console/CmdTheLine/Common.hs
+++ b/src/System/Console/CmdTheLine/Common.hs
diff --git a/src/System/Console/CmdTheLine/Err.hs b/src/System/Console/CmdTheLine/Err.hs
--- a/src/System/Console/CmdTheLine/Err.hs
+++ b/src/System/Console/CmdTheLine/Err.hs
diff --git a/src/System/Console/CmdTheLine/Help.hs b/src/System/Console/CmdTheLine/Help.hs
--- a/src/System/Console/CmdTheLine/Help.hs
+++ b/src/System/Console/CmdTheLine/Help.hs
diff --git a/src/System/Console/CmdTheLine/Manpage.hs b/src/System/Console/CmdTheLine/Manpage.hs
--- a/src/System/Console/CmdTheLine/Manpage.hs
+++ b/src/System/Console/CmdTheLine/Manpage.hs
diff --git a/src/System/Console/CmdTheLine/Term.hs b/src/System/Console/CmdTheLine/Term.hs
--- a/src/System/Console/CmdTheLine/Term.hs
+++ b/src/System/Console/CmdTheLine/Term.hs
diff --git a/src/System/Console/CmdTheLine/Trie.hs b/src/System/Console/CmdTheLine/Trie.hs
--- a/src/System/Console/CmdTheLine/Trie.hs
+++ b/src/System/Console/CmdTheLine/Trie.hs