diff --git a/manual/upgrade/upgrade_notes_for_13.0.x.md b/manual/upgrade/upgrade_notes_for_13.0.x.md
index 25c394df..7bc1a5a0 100644
--- a/manual/upgrade/upgrade_notes_for_13.0.x.md
+++ b/manual/upgrade/upgrade_notes_for_13.0.x.md
@@ -114,12 +114,12 @@ SEAFILE_MYSQL_DB_SEAHUB_DB_NAME=seahub_db
 CACHE_PROVIDER=redis # options: redis (recommend), memcached
 
 ### Redis
-REDIS_HOST=redis
+REDIS_HOST=<your redis host>
 REDIS_PORT=6379
 REDIS_PASSWORD=
 
 ### Memcached
-MEMCACHED_HOST=memcached
+MEMCACHED_HOST=<your memcached host>
 MEMCACHED_PORT=11211
 ```