diff --git a/README.md b/README.md
index 1841bf3dd247970656684b28d182be2c6f324c7e..a4a74a7b3ecd06e690a93aaad205aa57be681848 100644
--- a/README.md
+++ b/README.md
@@ -51,7 +51,7 @@
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 # 下载
 
-百度网盘链接，提取码: agpx 
+百度网盘链接，提取码: **agpx**
 
 https://pan.baidu.com/s/13tqB_kGonNoe-pfcnkUJ0A