diff --git a/config.ru b/config.ru
index f4a6bc9..9dc7288 100644
--- a/config.ru
+++ b/config.ru
@@ -12,4 +12,6 @@ require 'puma'
 require './lib/slack_bot_app'
 require_relative 'config/initializers/active_record_established'
 
+use Rack::RewindableInput::Middleware
+
 run Rack::URLMap.new('/' => SlackRubyBotServer::Api::Middleware.instance, '/github' => Server)