diff --git a/cookbook/91_tools/mcp/mcp_toolbox_demo/requirements.txt b/cookbook/91_tools/mcp/mcp_toolbox_demo/requirements.txt
index d967472291..8ccee883ce 100644
--- a/cookbook/91_tools/mcp/mcp_toolbox_demo/requirements.txt
+++ b/cookbook/91_tools/mcp/mcp_toolbox_demo/requirements.txt
@@ -135,7 +135,7 @@ typing-inspection==0.4.1
     # via
     #   pydantic
     #   pydantic-settings
-urllib3==2.5.0
+urllib3==2.6.3
     # via requests
 uvicorn==0.35.0
     # via mcp