diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index af1ddc06..9e699b23 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -6,9 +6,9 @@ module ApplicationHelper
     when 'success'
       'alert-success'
     when 'error'
-      'alert-error'
+      'alert-danger'
     when 'alert'
-      'alert-block'
+      'alert-warning'
     when 'notice'
       'alert-info'
     else