diff --git a/config/routes.rb b/config/routes.rb
index fd833b8bf51..61c78af70f4 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -8,6 +8,8 @@ USERNAME_ROUTE_FORMAT = /[%\w.\-]+?/ unless defined? USERNAME_ROUTE_FORMAT
 BACKUP_ROUTE_FORMAT = /.+\.(sql\.gz|tar\.gz|tgz)/i unless defined? BACKUP_ROUTE_FORMAT
 
 Discourse::Application.routes.draw do
+  def patch(*) end # Disable PATCH requests
+
   scope path: nil, constraints: { format: /(json|html|\*\/\*)/ } do
     relative_url_root = (defined?(Rails.configuration.relative_url_root) && Rails.configuration.relative_url_root) ? Rails.configuration.relative_url_root + '/' : '/'