diff --git a/Mighty.hs b/Mighty.hs
--- a/Mighty.hs
+++ b/Mighty.hs
@@ -8,6 +8,7 @@
 import Control.Exception (catch, handle, SomeException)
 import Control.Monad
 import qualified Data.ByteString.Char8 as BS
+import Data.Conduit.Network
 import FileCGIApp
 import FileCache
 import Network
diff --git a/mighttpd2.cabal b/mighttpd2.cabal
--- a/mighttpd2.cabal
+++ b/mighttpd2.cabal
@@ -1,5 +1,5 @@
 Name:                   mighttpd2
-Version:                2.5.6
+Version:                2.5.7
 Author:                 Kazu Yamamoto <kazu@iij.ad.jp>
 Maintainer:             Kazu Yamamoto <kazu@iij.ad.jp>
 License:                BSD3
@@ -27,6 +27,7 @@
                       , http-date
                       , http-types
                       , network
+                      , network-conduit
                       , old-locale
                       , parsec >= 3
                       , time
@@ -71,6 +72,7 @@
                       , http-date
                       , http-types
                       , network
+                      , network-conduit
                       , old-locale
                       , parsec >= 3
                       , time
@@ -89,4 +91,4 @@
 
 Source-Repository head
   Type:                 git
-  Location:             git clone git://github.com/kazu-yamamoto/mighttpd2.git
+  Location:             git://github.com/kazu-yamamoto/mighttpd2.git