diff --git a/hoodle-publish.cabal b/hoodle-publish.cabal
--- a/hoodle-publish.cabal
+++ b/hoodle-publish.cabal
@@ -1,14 +1,14 @@
 Name:		hoodle-publish
-Version:	0.2.0
+Version:	0.2.1
 Synopsis:	publish hoodle files as a static web site
-Description: 	This package provieds a simple tool hoodle-publish which make a static web site from a directory containing hoodle files
+Description: 	This package provides a simple tool hoodle-publish which make a static web site from a directory containing hoodle files
 Homepage:       http://ianwookim.org/hoodle
 License:        BSD3
 License-file:	LICENSE
 Author:	        Ian-Woo Kim
 Maintainer: 	Ian-Woo Kim <ianwookim@gmail.com>
 Category:       Application
-Tested-with:    GHC == 7.8
+Tested-with:    GHC == 8.0
 Build-Type: 	Simple
 Cabal-Version:  >= 1.8
 data-files:     
@@ -16,10 +16,6 @@
   type: git
   location: http://www.github.com/wavewave/hoodle
 
-Flag Gtk3
-  Description:     compile with gtk3
-  Default:         False 
-
 Library
   hs-source-dirs:  lib
   ghc-options: 	    -Wall  -funbox-strict-fields -fno-warn-unused-do-bind -fno-warn-orphans 
@@ -34,9 +30,7 @@
                    directory > 1,
                    directory-tree, 
                    filepath > 1, 
-                   hoodle-parser >= 0.3.0,
-                   hoodle-render >= 0.5.0,
-                   hoodle-types >= 0.3.0,
+                   gtk3 >= 0.14,
                    HTTP,
                    io-streams, 
                    lens >= 2.5,
@@ -47,12 +41,11 @@
                    process >= 1.1, 
                    transformers >= 0.3,
                    unordered-containers,
-                   uuid >= 1.2.7 
-  if flag(gtk3) 
-    Build-depends: gtk3 >= 0.13.0.3 
-  else 
-    Build-depends: gtk >= 0.13.0.3
-
+                   uuid >= 1.2.7,
+                   -- 
+                   hoodle-parser >= 0.4,
+                   hoodle-render >= 0.6,
+                   hoodle-types >= 0.4
 
   Exposed-modules: 
                    Hoodle.Publish.PDF
@@ -68,8 +61,5 @@
                    directory,
                    directory-tree, 
                    filepath,
-                   hoodle-publish
-  if flag(gtk3) 
-    Build-depends: gtk3 >= 0.13.0.3 
-  else 
-    Build-depends: gtk >= 0.13.0.3
+                   hoodle-publish,
+                   gtk3 >= 0.14