Index: lib/redmine/helpers/gantt.rb
===================================================================
--- lib/redmine/helpers/gantt.rb        (revision 4672)
+++ lib/redmine/helpers/gantt.rb        (working copy)
@@ -200,7 +200,9 @@

         # Third, Versions
         project.versions.sort.each do |version|
-          render_version(version, options)
+         if !version.closed?
+              render_version(version, options)
+         end
           return if abort?
         end