diff --git a/Chart-gtk.cabal b/Chart-gtk.cabal
--- a/Chart-gtk.cabal
+++ b/Chart-gtk.cabal
@@ -1,5 +1,5 @@
 Name: Chart-gtk
-Version: 1.7
+Version: 1.8
 License: BSD3
 License-file: LICENSE
 Copyright: Tim Docker, 2006-2014
@@ -17,12 +17,12 @@
                , old-locale
                , time, mtl, array
                , cairo >= 0.9.11
-               , data-default-class < 0.1
+               , data-default-class < 0.2
                , colour >= 2.2.1 && < 2.4
                , colour >= 2.2.1
                , gtk >= 0.9.11
-               , Chart >= 1.7 && < 1.8
-               , Chart-cairo >= 1.7 && < 1.8
+               , Chart >= 1.8 && < 1.9
+               , Chart-cairo >= 1.8 && < 1.9
 
   Exposed-modules:
         Graphics.Rendering.Chart.Gtk