diff --git a/samples/mcp/service-2/requirements.txt b/samples/mcp/service-2/requirements.txt
index 66b408cb..1640a9a6 100644
--- a/samples/mcp/service-2/requirements.txt
+++ b/samples/mcp/service-2/requirements.txt
@@ -13,7 +13,7 @@ itsdangerous==2.2.0
 Jinja2==3.1.5
 jiter==0.8.2
 MarkupSafe==3.0.2
-mcp==1.2.1
+mcp==1.23.0
 pydantic==2.10.6
 pydantic-settings==2.7.1
 pydantic_core==2.27.2