diff --git a/samples/kotlin-mcp-server/gradle/libs.versions.toml b/samples/kotlin-mcp-server/gradle/libs.versions.toml
index d46c2f19f..80a85a91b 100644
--- a/samples/kotlin-mcp-server/gradle/libs.versions.toml
+++ b/samples/kotlin-mcp-server/gradle/libs.versions.toml
@@ -1,5 +1,5 @@
 [versions]
-kotlin = "2.4.10"
+kotlin = "2.4.20"
 ktor = "3.5.2"
 mcp-kotlin = "0.15.0"
 slf4j = "2.0.19"