diff --git a/requirements.txt b/requirements.txt
index 84b4c57..0dff5b9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -51,7 +51,7 @@ langgraph-sdk==0.2.10         # LangGraph SDK
 # ----------------------------------------------------------------------------
 # LangChain 生态相关
 # ----------------------------------------------------------------------------
-langsmith==0.4.49             # LangSmith 监控
+langsmith==0.7.31             # LangSmith 监控
 langchain-classic==1.0.0      # LangChain Classic
 
 # ----------------------------------------------------------------------------