diff --git a/Network/Wai/Logger.hs b/Network/Wai/Logger.hs
--- a/Network/Wai/Logger.hs
+++ b/Network/Wai/Logger.hs
@@ -53,7 +53,6 @@
 import Control.Concurrent (forkIO, threadDelay, killThread)
 import Control.Exception (handle, SomeException(..), bracket)
 import Control.Monad (when, void)
-import GHC.IO.FD (stdout)
 import Network.HTTP.Types (Status)
 import Network.Wai (Request)
 import System.IO (withFile, hFileSize, IOMode(..))
@@ -149,7 +148,7 @@
 stdoutLoggerInit :: IPAddrSource -> BufSize -> DateCacheGetter
                  -> IO ApacheLoggerActions
 stdoutLoggerInit ipsrc size dateget = do
-    lgrset <- newLoggerSet size stdout
+    lgrset <- newLoggerSet size Nothing
     let logger = apache (pushLogStr lgrset) ipsrc dateget
         flusher = flushLogStr lgrset
         noRotator = return ()
@@ -164,8 +163,7 @@
 fileLoggerInit :: IPAddrSource -> FileLogSpec -> BufSize -> DateCacheGetter
                -> IO ApacheLoggerActions
 fileLoggerInit ipsrc spec size dateget = do
-    fd <- logOpen (log_file spec)
-    lgrset <- newLoggerSet size fd
+    lgrset <- newLoggerSet size $ Just (log_file spec)
     let logger = apache (pushLogStr lgrset) ipsrc dateget
         flusher = flushLogStr lgrset
         rotator = logRotater lgrset spec
@@ -205,7 +203,7 @@
     over <- isOver
     when over $ do
         rotate spec
-        logOpen (log_file spec) >>= renewLoggerSet lgrset
+        renewLoggerSet lgrset
   where
     file = log_file spec
     isOver = handle (\(SomeException _) -> return False) $ do
diff --git a/wai-logger.cabal b/wai-logger.cabal
--- a/wai-logger.cabal
+++ b/wai-logger.cabal
@@ -1,5 +1,5 @@
 Name:                   wai-logger
-Version:                2.0.2
+Version:                2.1.0
 Author:                 Kazu Yamamoto <kazu@iij.ad.jp>
 Maintainer:             Kazu Yamamoto <kazu@iij.ad.jp>
 License:                BSD3
@@ -22,7 +22,7 @@
                       , byteorder
                       , bytestring
                       , case-insensitive
-                      , fast-logger >= 2.0.0
+                      , fast-logger >= 2.1.0
                       , http-types
                       , network
                       , wai >= 2.0.0