diff --git a/API_v3_接口文档.md b/API_v3_接口文档.md
index 98b7383c..b636006a 100644
--- a/API_v3_接口文档.md
+++ b/API_v3_接口文档.md
@@ -16,7 +16,7 @@
 所有接口均需在请求头中携带 API Key：
 
 ```
-Authorization: Bearer vk_xxxxxxxxxxxxxxxxxxxxxxxxxxxx11
+Authorization: Bearer vk_xxxxxxxxxxxxxxxxxxxxxxxxxxxx
 ```
 
 ### 错误响应