diff --git a/Codec/Archive/Tar/Pack.hs b/Codec/Archive/Tar/Pack.hs
--- a/Codec/Archive/Tar/Pack.hs
+++ b/Codec/Archive/Tar/Pack.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE CPP #-}
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Codec.Archive.Tar
@@ -28,8 +29,16 @@
 import System.Directory
          ( getDirectoryContents, doesDirectoryExist, getModificationTime
          , Permissions(..), getPermissions )
+#if MIN_VERSION_directory(1,2,0)
+-- The directory package switched to the new time package
+import Data.Time.Clock
+         ( UTCTime )
+import Data.Time.Clock.POSIX
+         ( utcTimeToPOSIXSeconds )
+#else
 import System.Time
          ( ClockTime(..) )
+#endif
 import System.IO
          ( IOMode(ReadMode), openBinaryFile, hFileSize )
 import System.IO.Unsafe (unsafeInterleaveIO)
@@ -170,5 +179,11 @@
 
 getModTime :: FilePath -> IO EpochTime
 getModTime path = do
+#if MIN_VERSION_directory(1,2,0)
+  -- The directory package switched to the new time package
+  t <- getModificationTime path
+  return . floor . utcTimeToPOSIXSeconds $ t
+#else
   (TOD s _) <- getModificationTime path
   return $! fromIntegral s
+#endif
diff --git a/Codec/Archive/Tar/Types.hs b/Codec/Archive/Tar/Types.hs
--- a/Codec/Archive/Tar/Types.hs
+++ b/Codec/Archive/Tar/Types.hs
@@ -120,6 +120,7 @@
                   | BlockDevice     !DevMajor !DevMinor
                   | NamedPipe
                   | OtherEntryType  !TypeCode ByteString !FileSize
+    deriving (Eq, Ord)
 
 data Ownership = Ownership {
     -- | The owner user name. Should be set to @\"\"@ if unknown.
@@ -134,6 +135,7 @@
     -- | Numeric owner group id. Should be set to @0@ if unknown.
     groupId :: !Int
   }
+    deriving (Eq, Ord)
 
 -- | There have been a number of extensions to the tar file format over the
 -- years. They all share the basic entry fields and put more meta-data in
@@ -156,7 +158,7 @@
      -- archives the standard USTAR/POSIX should be used.
      --
    | GnuFormat
-  deriving Eq
+  deriving (Eq, Ord)
 
 -- | @rw-r--r--@ for normal files
 ordinaryFilePermissions :: Permissions
diff --git a/tar.cabal b/tar.cabal
--- a/tar.cabal
+++ b/tar.cabal
@@ -1,5 +1,5 @@
 name:            tar
-version:         0.4.0.0
+version:         0.4.0.1
 license:         BSD3
 license-file:    LICENSE
 author:          Bjorn Bringert <bjorn@bringert.net>
@@ -25,7 +25,8 @@
 
 library
   build-depends: base >= 3 && < 5, filepath,
-                 directory, old-time, bytestring
+                 bytestring, directory,
+                 old-time, time
 
   exposed-modules:
     Codec.Archive.Tar