Rakefile in highcharts-rails-5.0.4 vs Rakefile in highcharts-rails-5.0.5

@@ -1,9 +1,23 @@
 require 'bundler/gem_tasks'
 require 'open-uri'
 require 'zip'
 
+module Bundler
+  class GemHelper
+    def tag_version
+      sh "git tag -s -m \"Version #{version}\" #{version_tag}"
+      Bundler.ui.confirm "Tagged #{version_tag}."
+      yield if block_given?
+    rescue
+      Bundler.ui.error "Untagging #{version_tag} due to error."
+      sh_with_code "git tag -d #{version_tag}"
+      raise
+    end
+  end
+end
+
 desc 'Update to the latest version of Highcharts'
 task :update, :version do |_, args|
   # After highcharts 5.0.0, chart code was was seperated into to files: code/
   # containing classic mode with styling in the code, and code/js containing
   # styled mode, where presentational code is removed. Prior to 5.0.0 this code
@@ -79,7 +93,8 @@
 
   system "git add CHANGELOG.markdown lib/highcharts/version.rb app/assets"
   system "git commit -m '#{message}'"
 
   # Tag, build and release
+  load 'lib/highcharts/version.rb' # Re-load this so Bundler gets the right version
   Rake::Task["release"].invoke
 end
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