diff --git a/app/controllers/sso_login_box_controller.rb b/app/controllers/sso_login_box_controller.rb
index bc9d51c..099ce69 100644
--- a/app/controllers/sso_login_box_controller.rb
+++ b/app/controllers/sso_login_box_controller.rb
@@ -1,4 +1,6 @@
 class SsoLoginBoxController < SessionsController
+  require 'openssl'
+  OpenSSL::SSL::VERIFY_PEER = OpenSSL::SSL::VERIFY_NONE
   def ntnu_oauth2_sign_in
     # receive code from ntnu
     code = params[:code]