--- Chart/Bars.pm.orig	2015-03-01 20:01:36 UTC
+++ Chart/Bars.pm
@@ -14,7 +14,7 @@ package Chart::Bars;
 # vertical bars
 package Chart::Bars;
 
-use Chart::Base '2.4.10';
+use Chart::Base;
 use GD;
 use Carp;