diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,10 @@
 # Revision history for boring-window-switcher
 
+## 0.1.0.1  -- 2016-10-09
+
+* Confirmed build with `hspec-2.3.0`.
+
+
 ## 0.1.0.0  -- 2016-06-28
 
 * First version. Released on an unsuspecting world.
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -9,11 +9,23 @@
 
 ## How to Install
 
-TBW. (It's a Haskell program installable by `cabal`).
+To build this program, you need development files of GTK+ and Xlib. On Ubuntu, you can install them by
 
+    $ sudo apt-get install libgtk2.0-dev libx11-dev
+
+Then the easiest way to install this program is to use git and [stack](http://docs.haskellstack.org/en/stable/README/). Just clone this repository, build the source and install.
+
+    $ git clone https://github.com/debug-ito/boring-window-switcher.git
+    $ cd boring-window-switcher
+    $ stack --install-ghc install
+
+Building `gtk` takes long time. Be patient.
+
+Alternatively, you can install this program directly from hackage: http://hackage.haskell.org/package/boring-window-switcher
+
 ## How to Run
 
- $ boring-window-switcher
+    $ boring-window-switcher
 
 ## See Also
 
diff --git a/boring-window-switcher.cabal b/boring-window-switcher.cabal
--- a/boring-window-switcher.cabal
+++ b/boring-window-switcher.cabal
@@ -1,5 +1,5 @@
 name:                   boring-window-switcher
-version:                0.1.0.0
+version:                0.1.0.1
 author:                 Toshio Ito <debug.ito@gmail.com>
 maintainer:             Toshio Ito <debug.ito@gmail.com>
 license:                BSD3
@@ -53,7 +53,7 @@
   -- other-extensions:     
   other-modules:        Graphics.UI.BoringWindowSwitcher.Internal.ControlSpec
   build-depends:        base, boring-window-switcher,
-                        hspec >=2.1.7 && <2.3
+                        hspec >=2.1.7 && <2.4
 
 source-repository head
   type:                 git