diff --git a/hack2-contrib.cabal b/hack2-contrib.cabal
--- a/hack2-contrib.cabal
+++ b/hack2-contrib.cabal
@@ -1,8 +1,8 @@
 Name:                 hack2-contrib
-Version:              2012.12.18
+Version:              2013.6.15
 Build-type:           Simple
 Synopsis:             Hack2 contrib
-Description:          Common middlewares and utilities that helps working with Hack2
+Description:          Common middlewares and utilities for Hack2
 License:              BSD3
 License-file:         LICENSE
 Author:               Jinjing Wang
@@ -12,7 +12,7 @@
 category:             Web
 homepage:             https://github.com/nfjinjing/hack2-contrib
 data-files:           readme.md, changelog.md
-tested-with:          GHC==7.6.1
+tested-with:          GHC==7.6.3
 
 library
 
@@ -26,12 +26,11 @@
                   , filepath
                   , containers
                   , bytestring
-                  , data-default >= 0.2
+                  , data-default
                   , time
-                  , air >= 2011.6.19
-                  , hack2 >= 2012.1.19
+                  , air
+                  , hack2
                   , utf8-string
-                  -- , ansi-wl-pprint
                   , regexpr
                   
   hs-source-dirs: src/
diff --git a/src/Hack2/Contrib/Middleware/File.hs b/src/Hack2/Contrib/Middleware/File.hs
--- a/src/Hack2/Contrib/Middleware/File.hs
+++ b/src/Hack2/Contrib/Middleware/File.hs
@@ -25,7 +25,7 @@
 
 file :: Maybe ByteString -> Middleware
 file root _ = \env -> do
-  let path = env.path_info .as_string unescape_uri
+  let path = env.path_info .as_string (unescape_uri > u2b)
   
   if B.unpack ".." `isInfixOf` B.unpack path
     then forbidden
diff --git a/src/Hack2/Contrib/Middleware/SimpleAccessLogger.hs b/src/Hack2/Contrib/Middleware/SimpleAccessLogger.hs
--- a/src/Hack2/Contrib/Middleware/SimpleAccessLogger.hs
+++ b/src/Hack2/Contrib/Middleware/SimpleAccessLogger.hs
@@ -32,8 +32,9 @@
       
       method      = env.request_method.show_bytestring
       http_status = env.hack_url_scheme.show_bytestring
-      access_path = env.fullpath.as_string unescape_uri
+      access_path = env.fullpath.as_string (unescape_uri > u2b)
       
+      
       fields =
         [ env.remote_host
         , "-"
@@ -42,7 +43,6 @@
         , r.status.show_bytestring
         , r.headers.get _ContentLength .fromMaybe "-"
         ]
-  
   puts - fields.B.intercalate " "
   return r
   
diff --git a/src/Hack2/Contrib/Middleware/Static.hs b/src/Hack2/Contrib/Middleware/Static.hs
--- a/src/Hack2/Contrib/Middleware/Static.hs
+++ b/src/Hack2/Contrib/Middleware/Static.hs
@@ -17,12 +17,13 @@
 import Prelude hiding ((.), (^), (>), (+))
 import qualified Data.ByteString.Char8 as B
 import Data.ByteString.Char8 (ByteString)
+import Air.Extra (u2b)
 
 static :: Maybe ByteString -> [ByteString] -> Middleware
 static root urls app = \env -> do
   let my_urls = if urls.null then ["/favicon.ico"] else urls
 
-  let path = env.path_info .as_string unescape_uri
+  let path = env.path_info .as_string (unescape_uri > u2b)
 
   let can_serve = my_urls.find ( `B.isPrefixOf` path ) .isJust