diff --git a/app.json b/app.json
index 02d4ef1ca..4357260ce 100644
--- a/app.json
+++ b/app.json
@@ -80,7 +80,7 @@
   },
   "name": "coderdojo.jp",
   "scripts": {
-      "postdeploy": "bundle exec rails db:schema:load && bundle exec rails db:seed && bundle exec rails dojos:update_db_by_yaml && bundle exec rails dojo_event_services:upsert"
+      "postdeploy": "bundle exec rails db:schema:load && bundle exec rails db:seed && bundle exec rails dojos:update_db_by_yaml && bundle exec rails dojo_event_services:upsert && bundle exec rails assets:precompile RAILS_ENV=staging"
   },
   "stack": "heroku-18"
 }