diff --git a/bamboo.cabal b/bamboo.cabal
--- a/bamboo.cabal
+++ b/bamboo.cabal
@@ -1,5 +1,5 @@
 Name:                 bamboo
-Version:              2009.4.23
+Version:              2009.4.25
 Build-type:           Simple
 Synopsis:             A simple blog engine on Hack
 Description:          A simple blog engine on Hack
@@ -15,7 +15,7 @@
 
 library
   ghc-options: -Wall -fno-warn-missing-signatures -fno-warn-name-shadowing -fno-warn-orphans -fno-warn-type-defaults
-  build-depends: base, cgi, network, haskell98, old-locale, old-time, directory, filepath, containers, process, mps >= 2008.11.6, parsedate >= 3000.0.0, rss >= 3000.0.1, xhtml, kibro >= 0.4.2, utf8-string >= 0.3.3, pandoc, parsec >= 2, MissingH, gravatar >= 0.3, data-default >= 0.2, hcheat >= 2008.11.6, hack >= 2009.4.23
+  build-depends: base, cgi, network, haskell98, old-locale, old-time, time, unix, bytestring, template, base64-string, zlib, directory, ansi-wl-pprint, hyena, filepath, containers, process, mps >= 2008.11.6, parsedate >= 3000.0.0, rss >= 3000.0.1, xhtml, kibro >= 0.4.2, utf8-string >= 0.3.3, pandoc, parsec >= 2, MissingH, gravatar >= 0.3, data-default >= 0.2, hcheat >= 2008.11.6, hack >= 2009.4.25
   hs-source-dirs: src/
   exposed-modules:  
                     Bamboo
diff --git a/changelog.md b/changelog.md
--- a/changelog.md
+++ b/changelog.md
@@ -1,3 +1,10 @@
+2009.4.25
+----------
+
+### Feature
+
+* Use hyena handler by default
+
 2009.4.23
 ---------
 
diff --git a/src/Bamboo.hs b/src/Bamboo.hs
--- a/src/Bamboo.hs
+++ b/src/Bamboo.hs
@@ -8,27 +8,54 @@
     bamboo
   ) where
 
-import Bamboo.Controller.Application
-import Hack.Handler.Kibro
+import Bamboo.Controller.Application (paths)
+
+import Hack.Handler.Hyena
 import Hack.Utils
 import Hack
 import Hack.Contrib.RawRouter
 import Hack.Contrib.ContentType
 import Hack.Contrib.ContentSize
 import Hack.Contrib.SimpleAccessLogger
+import Hack.Contrib.ShowExceptions
+import Hack.Contrib.File
+import Hack.Contrib.Static
+import Hack.Contrib.ShowStatus
+import Hack.Contrib.Lucky
 
+import qualified Hack.Contrib.Head as H
+
 import Bamboo.Helper.Env hiding (body, not_found, (>))
 
 default_content_type = "text/plain; charset=UTF-8"
 
 middleware_stack = 
-  [  simple_access_logger Nothing Nothing "Bamboo"
+  [  dummy_middleware
+  
+  -- completeness
   ,  content_size
   ,  content_type default_content_type
+  
+  -- debuging
+  ,  show_exceptions Nothing
+  ,  show_status
+  
+  -- optimization
+  ,  H.head
+
+  -- logger
+  -- ,  simple_access_logger Nothing
+    
+  -- dispatch
+  -- static serve
+   ,  lucky
+  ,  static (Just "db/public") ["/theme", "/images", "/plugin", "/favicon.ico"]
+  
+  -- real app
   ,  route paths
   ]
   
-app = not_found_app .use middleware_stack
+app = dummy_app .use middleware_stack
 
 bamboo :: IO ()
 bamboo = run app
diff --git a/src/Bamboo/Controller/Application.hs b/src/Bamboo/Controller/Application.hs
--- a/src/Bamboo/Controller/Application.hs
+++ b/src/Bamboo/Controller/Application.hs
@@ -20,7 +20,6 @@
 import qualified Bamboo.Type.Pager as Pager
 import Bamboo.Type.Extension
 import Hack
-import Hack.Utils (not_found_app)
 
 -- model
 import qualified Bamboo.Model.Post as Post
@@ -57,7 +56,7 @@
   .map_fst ((G.root /) > ("^" ++))
 
 
-only_for ext x = if has_extension ext then x else not_found_app
+only_for ext x = if has_extension ext then x else const not_found
 
 
 default_state = do
diff --git a/src/Bamboo/Helper/Helper.hs b/src/Bamboo/Helper/Helper.hs
--- a/src/Bamboo/Helper/Helper.hs
+++ b/src/Bamboo/Helper/Helper.hs
@@ -27,7 +27,6 @@
 import Data.Map (Map)
 import System.Directory
 import Hack
-import Hack.Utils (not_found_app)
 
 (/) :: FilePath -> FilePath -> FilePath
 (/) = (</>)
@@ -129,7 +128,7 @@
 
 -- config
 parse_list s = s.split "," .map strip .reject null
-not_found = not_found_app def
+not_found = return $ def { status = 404 }
 
 
 -- generic