diff --git a/samples/kotlin-mcp-client/gradle/libs.versions.toml b/samples/kotlin-mcp-client/gradle/libs.versions.toml
index 06a1c8f..c2edddb 100644
--- a/samples/kotlin-mcp-client/gradle/libs.versions.toml
+++ b/samples/kotlin-mcp-client/gradle/libs.versions.toml
@@ -1,6 +1,6 @@
 [versions]
 anthropic = "2.60.0"
-kotlin = "2.4.10"
+kotlin = "2.4.20"
 ktor = "3.5.2"
 mcp-kotlin = "0.15.0"
 shadow = "9.6.1"