diff --git a/samples/kotlin-mcp-client/gradle/libs.versions.toml b/samples/kotlin-mcp-client/gradle/libs.versions.toml
index b58eef204..bd1bcf91d 100644
--- a/samples/kotlin-mcp-client/gradle/libs.versions.toml
+++ b/samples/kotlin-mcp-client/gradle/libs.versions.toml
@@ -1,5 +1,5 @@
 [versions]
-anthropic = "2.62.0"
+anthropic = "2.64.0"
 kotlin = "2.4.20"
 ktor = "3.5.2"
 mcp-kotlin = "0.15.0"