diff --git a/docs/zh/component_specs/lock/mongo.md b/docs/zh/component_specs/lock/mongo.md
index e61a04c1cd..ec051ef4e2 100644
--- a/docs/zh/component_specs/lock/mongo.md
+++ b/docs/zh/component_specs/lock/mongo.md
@@ -2,7 +2,7 @@
 
 ## 配置项说明     
 
-实例：configs/config_lock_mongo.json
+示例：configs/config_lock_mongo.json
 
 | 字段 | 必填 | 说明 |
 | --- | --- | --- |
@@ -19,4 +19,4 @@
 
 ```shell 
 docker run --name mongoDB -d -p 27017:27017 mongo
-```
\ No newline at end of file
+```