diff --git a/simple-sendfile.cabal b/simple-sendfile.cabal
--- a/simple-sendfile.cabal
+++ b/simple-sendfile.cabal
@@ -1,5 +1,5 @@
 Name:                   simple-sendfile
-Version:                0.2.10
+Version:                0.2.11
 Author:                 Kazu Yamamoto <kazu@iij.ad.jp>
 Maintainer:             Kazu Yamamoto <kazu@iij.ad.jp>
 License:                BSD3
@@ -39,15 +39,16 @@
         Build-Depends:  unix
       else
         Other-Modules:  Network.Sendfile.Fallback
-        Build-Depends:  conduit         >= 0.4.1 && < 0.6
+        Build-Depends:  conduit         >= 0.4.1 && < 1.1
                       , transformers    >= 0.2.2 && < 0.4
 
 Test-Suite spec
   Type:                 exitcode-stdio-1.0
   Default-Language:     Haskell2010
   Hs-Source-Dirs:       test
-  Main-Is:              SendfileSpec.hs
+  Main-Is:              Spec.hs
   GHC-Options:          -Wall
+  Other-Modules:        SendfileSpec
   Build-Depends:        base
                       , HUnit
                       , bytestring
diff --git a/test/SendfileSpec.hs b/test/SendfileSpec.hs
--- a/test/SendfileSpec.hs
+++ b/test/SendfileSpec.hs
@@ -1,12 +1,11 @@
 {-# LANGUAGE OverloadedStrings #-}
 
-module Main where
+module SendfileSpec where
 
 import Control.Concurrent
 import Control.Exception
 import Control.Monad
-import Data.ByteString (ByteString)
-import qualified Data.ByteString.Char8 as BS
+import Data.ByteString.Char8 as BS
 import Data.Conduit
 import Data.Conduit.Binary as CB
 import Data.Conduit.List as CL
@@ -24,16 +23,10 @@
 
 ----------------------------------------------------------------
 
-main :: IO ()
-main = do
-    setup0
-    hspec spec
-
 spec :: Spec
 spec = do
     describe "sendfile" $ do
         it "sends an entire file" $ do
-            setup0
             sendFile EntireFile `shouldReturn` ExitSuccess
         it "sends a part of file" $ do
             sendFile (PartOfFile 2000 1000000) `shouldReturn` ExitSuccess
@@ -222,30 +215,3 @@
                   => FilePath
                   -> Sink ByteString m ()
 sinkAppendFile fp = sinkIOHandle (openBinaryFile fp AppendMode)
-
-----------------------------------------------------------------
-
-srcFile :: String
-srcFile = "/usr/share/dict/words"
-
-dstFile :: String
-dstFile = "test/inputFile"
-
-setup0 :: IO ()
-setup0 = do
-    dst <- doesFileExist dstFile
-    unless dst $ do
-        src <- doesFileExist srcFile
-        if src then do
-            size <- getFileSize srcFile
-            if size >= 1000000 then
-                copyFile srcFile dstFile
-              else
-                failure
-          else
-            failure
-  where
-    getFileSize file = bracket (openFile file ReadMode) hClose hFileSize
-    failure = do
-        hPutStrLn stderr "You must copy a large file (> 1000000 bytes) to \"test/inputFile\"."
-        exitFailure
diff --git a/test/Spec.hs b/test/Spec.hs
new file mode 100644
--- /dev/null
+++ b/test/Spec.hs
@@ -0,0 +1,1 @@
+{-# OPTIONS_GHC -F -pgmF hspec-discover #-}