diff --git a/SetupWrapper.hs b/SetupWrapper.hs
--- a/SetupWrapper.hs
+++ b/SetupWrapper.hs
@@ -20,7 +20,7 @@
 import System.Process
 import System.Exit (ExitCode(..), exitWith)
 import System.FilePath
-import System.Directory
+import System.Directory (doesFileExist, getModificationTime)
 import qualified Control.Exception as Exception
 import System.IO.Error (isDoesNotExistError)
 
diff --git a/webkitgtk3-javascriptcore.cabal b/webkitgtk3-javascriptcore.cabal
--- a/webkitgtk3-javascriptcore.cabal
+++ b/webkitgtk3-javascriptcore.cabal
@@ -1,5 +1,5 @@
 Name:		webkitgtk3-javascriptcore
-Version:	0.13.1.0
+Version:	0.13.1.1
 Synopsis:       JavaScriptCore FFI from webkitgtk
 Description: 	FFI for JavaScriptCore module from webkitgtk
 License: 	BSD3