diff --git a/app/controllers/admin/sites_controller.rb b/app/controllers/admin/sites_controller.rb
index 0e252ff..38da321 100644
--- a/app/controllers/admin/sites_controller.rb
+++ b/app/controllers/admin/sites_controller.rb
@@ -105,8 +105,7 @@ class Admin::SitesController < OrbitAdminController
         result = "failed"
       else
         result = "success"
-        p1 = fork { bundle_update }
-        Process.detach(p1)
+       Bundler.with_clean_env { `cd #{Rails.root} && bundle update` }
       end
 
       render :text => result