diff --git a/Chart-cairo.cabal b/Chart-cairo.cabal
--- a/Chart-cairo.cabal
+++ b/Chart-cairo.cabal
@@ -1,5 +1,5 @@
 Name: Chart-cairo
-Version: 1.8
+Version: 1.8.1
 License: BSD3
 License-file: LICENSE
 Copyright: Tim Docker, 2006-2014
@@ -20,8 +20,8 @@
                , colour >= 2.2.1 && < 2.4
                , data-default-class < 0.2
                , operational >= 0.2.2 && < 0.3
-               , lens >= 3.9 && < 4.15
-               , Chart >= 1.8 && < 1.9
+               , lens >= 3.9 && < 4.16
+               , Chart >= 1.8.1 && < 1.9
 
   Exposed-modules:
         Graphics.Rendering.Chart.Backend.Cairo