diff --git a/app/controllers/admin/sites_controller.rb b/app/controllers/admin/sites_controller.rb
index 539a3f6..0e252ff 100644
--- a/app/controllers/admin/sites_controller.rb
+++ b/app/controllers/admin/sites_controller.rb
@@ -105,7 +105,7 @@ class Admin::SitesController < OrbitAdminController
         result = "failed"
       else
         result = "success"
-        p1 = fork { bundle_install }
+        p1 = fork { bundle_update }
         Process.detach(p1)
       end
 
@@ -116,7 +116,7 @@ class Admin::SitesController < OrbitAdminController
   end
 
   def bundle_install
-    Bundler.with_clean_env { `cd #{Rails.root} && bundle install` }
+    Bundler.with_clean_env { `cd #{Rails.root} && bundle update` }
     %x(kill -s USR2 `cat tmp/pids/unicorn.pid`)
     sleep 5
     render :nothing => true