diff --git a/samples/weather-stdio-server/gradle/libs.versions.toml b/samples/weather-stdio-server/gradle/libs.versions.toml
index d7a6fcbf..3e99eada 100644
--- a/samples/weather-stdio-server/gradle/libs.versions.toml
+++ b/samples/weather-stdio-server/gradle/libs.versions.toml
@@ -3,7 +3,7 @@ coroutines = "1.11.0"
 kotlin = "2.3.21"
 ktor = "3.3.3"
 logging = "8.0.4"
-mcp-kotlin = "0.12.0"
+mcp-kotlin = "0.13.0"
 shadow = "9.4.2"
 slf4j = "2.0.18"