diff --git a/docs/operation/Nv15_upgrade_guide.md b/docs/operation/Nv15_upgrade_guide.md
index d36cfb5ef..5868523a3 100644
--- a/docs/operation/Nv15_upgrade_guide.md
+++ b/docs/operation/Nv15_upgrade_guide.md
@@ -30,7 +30,7 @@ For large scale storage systems, it is recommended that running chain-co with bo
 
 2. venus-wallet: `optional` upgrade; branch/tag `v1.4.0`;
 
-3. venus daemon: `mandatory` upgrade; branch/tag `v1.2.0`;
+3. venus daemon: `mandatory` upgrade; branch/tag `v1.2.1`;
 
 :::tip
 
diff --git a/docs/zh/operation/Nv15_upgrade_guide.md b/docs/zh/operation/Nv15_upgrade_guide.md
index 06dee53ae..196ac5976 100644
--- a/docs/zh/operation/Nv15_upgrade_guide.md
+++ b/docs/zh/operation/Nv15_upgrade_guide.md
@@ -19,7 +19,7 @@
     分支： v1.3.2
     影响功能: 无
 2. venus： 升级
-    分支：v1.2.0
+    分支：v1.2.1
     影响功能：支持新网络版本
     注意事项：    
       1. 升级后检查vk文件是否完整