diff --git a/config/application.rb b/config/application.rb
index f7d05dcd4..feb5605d3 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -33,6 +33,9 @@ module Educoderplus
       provider :cas, url: 'https://urp.tfswufe.edu.cn/cas'
     end
 
+    config.middleware.use ActionDispatch::Cookies
+    config.middleware.use ActionDispatch::Session::CookieStore
+
     config.middleware.insert_before 0, Rack::Cors do
       allow do
         origins '*'