diff --git a/Stock_MCP/requirements.txt b/Stock_MCP/requirements.txt
index 3108a09..73b67ad 100644
--- a/Stock_MCP/requirements.txt
+++ b/Stock_MCP/requirements.txt
@@ -31,7 +31,7 @@ charset-normalizer==3.4.4
     # via requests
 click==8.3.0
     # via uvicorn
-cryptography==46.0.7
+cryptography==48.0.1
     # via pyjwt
 curl-cffi==0.13.0
     # via yfinance