diff --git a/filelock.cabal b/filelock.cabal
--- a/filelock.cabal
+++ b/filelock.cabal
@@ -2,9 +2,10 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                filelock
-version:             0.1.0.0
+version:             0.1.0.1
 synopsis:            Portable interface to file locking (flock / LockFileEx)
--- description:         
+description:         This package provides an interface to Windows and Unix
+                     file locking functionalities.
 homepage:            http://github.com/takano-akio/filelock
 license:             PublicDomain
 license-file:        LICENSE
@@ -21,7 +22,7 @@
   other-modules:       System.FileLock.Internal.Flock
                        System.FileLock.Internal.LockFileEx
   -- other-extensions:    
-  build-depends:       base >=4.5.1.0 && <4.7
+  build-depends:       base >=4.5.1.0 && <5
   -- hs-source-dirs:      
   default-language:    Haskell2010