diff --git a/event_news_mod.gemspec b/event_news_mod.gemspec
index 6e11488..9c33fdc 100644
--- a/event_news_mod.gemspec
+++ b/event_news_mod.gemspec
@@ -7,6 +7,20 @@ bundle_update_flag = ARGV[0]=='update' || ARGV[0]=='install'
 if bundle_update_flag
   require File.expand_path("../update_event_news", __FILE__)
   env_pwd = ENV['PWD']
+  begin
+    require ::File.expand_path('app/helpers/bundler_helper.rb',  env_pwd)
+    extend BundlerHelper
+  rescue LoadError
+    def bundler_with_clean_env
+      if block_given?
+        if Bundler.respond_to?(:with_unbundled_env)
+          Bundler.with_unbundled_env(&Proc.new)
+        else
+          Bundler.with_clean_env(&Proc.new)
+        end
+      end
+    end
+  end
   app_path = File.expand_path(__dir__)
   template_path = env_pwd + '/app/templates'
   all_template = Dir.glob(template_path+'/*/')
@@ -14,14 +28,14 @@ if bundle_update_flag
   all_template.each do |folder|
     if !folder.include?('mobile')
       if Dir.exist?("#{folder}modules/event_news")
-        Bundler.with_clean_env{system ("cp -rf #{folder}modules/event_news #{folder}modules/event_news_mod && rm -rf #{folder}modules/event_news")}
+        bundler_with_clean_env{system ("cp -rf #{folder}modules/event_news #{folder}modules/event_news_mod && rm -rf #{folder}modules/event_news")}
       end
       if Dir.exist?("#{folder}modules/event_news_mod/event_news")
-        Bundler.with_clean_env{system ("cp -rf #{folder}modules/event_news_mod/event_news/* #{folder}modules/event_news_mod/. && rm -rf #{folder}modules/event_news_mod/event_news")}
+        bundler_with_clean_env{system ("cp -rf #{folder}modules/event_news_mod/event_news/* #{folder}modules/event_news_mod/. && rm -rf #{folder}modules/event_news_mod/event_news")}
       end
       info_json_file = "#{folder}modules/event_news_mod/info.json"
       if File.exist?(info_json_file)
-        Bundler.with_clean_env{system ('cp -f '+ app_path + '/modules/event_news_mod/show.html.erb ' + "#{folder}modules/event_news_mod/.")}
+        bundler_with_clean_env{system ('cp -f '+ app_path + '/modules/event_news_mod/show.html.erb ' + "#{folder}modules/event_news_mod/.")}
         update_event_news_template(folder)
         begin
           file_text = File.read(info_json_file) rescue ""
@@ -49,9 +63,9 @@ if bundle_update_flag
                     copy_h["name"][locale] = copy_h["name"][locale].sub(/\d+/){|ff| last_index.to_s}
                   end
                   widget_info << copy_h
-                  Bundler.with_clean_env{%x[cp -f #{app_path}/modules/event_news_mod/_#{h["filename"]}.html.erb #{folder}modules/event_news_mod/_#{copy_h["filename"]}.html.erb]}
+                  bundler_with_clean_env{%x[cp -f #{app_path}/modules/event_news_mod/_#{h["filename"]}.html.erb #{folder}modules/event_news_mod/_#{copy_h["filename"]}.html.erb]}
                 elsif h["force_cover"] == "true"
-                  Bundler.with_clean_env{%x[cp -f #{app_path}/modules/event_news_mod/_#{h["filename"]}.html.erb #{folder}modules/event_news_mod/_#{widget_info[widget_info_index]["filename"]}.html.erb]}
+                  bundler_with_clean_env{%x[cp -f #{app_path}/modules/event_news_mod/_#{h["filename"]}.html.erb #{folder}modules/event_news_mod/_#{widget_info[widget_info_index]["filename"]}.html.erb]}
                 end
               end
               if update_flag
@@ -72,7 +86,7 @@ if bundle_update_flag
         end
       else
         if !Dir.exist?(File.dirname(info_json_file)) && Dir.exist?(File.dirname(File.dirname(info_json_file)))
-          Bundler.with_clean_env{system ('cp -r '+ app_path + '/modules/ ' + folder)}
+          bundler_with_clean_env{system ('cp -r '+ app_path + '/modules/ ' + folder)}
         end
       end
     end
@@ -83,7 +97,7 @@ if bundle_update_flag
   #     moudle_path = "#{folder}modules/universal_table/"
   #     begin
 	 #      if Dir.exist?(File.dirname(moudle_path))
-	 #        Bundler.with_clean_env{system ('cp -r '+ app_path + '/modules/ ' + folder)}
+	 #        bundler_with_clean_env{system ('cp -r '+ app_path + '/modules/ ' + folder)}
 	 #      end
 	 #  	rescue => e
 	 #  		puts "There was some error when updating event_news widget."