diff --git a/kotlin-wot-spring-boot-starter/build.gradle.kts b/kotlin-wot-spring-boot-starter/build.gradle.kts
index 0e80427..5b9e5b7 100644
--- a/kotlin-wot-spring-boot-starter/build.gradle.kts
+++ b/kotlin-wot-spring-boot-starter/build.gradle.kts
@@ -1,7 +1,7 @@
 import org.springframework.boot.gradle.tasks.bundling.BootJar
 
 plugins {
-    kotlin("plugin.spring") version "1.9.10"
+    kotlin("plugin.spring") version "2.1.20"
     id("org.springframework.boot") version "3.1.5" // Use the latest compatible version
     id("io.spring.dependency-management") version "1.1.3"
 }
diff --git a/kotlin-wot-tool-example/build.gradle.kts b/kotlin-wot-tool-example/build.gradle.kts
index f000c22..0b2ff41 100644
--- a/kotlin-wot-tool-example/build.gradle.kts
+++ b/kotlin-wot-tool-example/build.gradle.kts
@@ -2,7 +2,7 @@ import org.springframework.boot.gradle.tasks.run.BootRun
 import java.net.URI
 
 plugins {
-    kotlin("plugin.spring") version "1.9.10"
+    kotlin("plugin.spring") version "2.1.20"
     id("org.springframework.boot") version "3.1.5" // Use the latest compatible version
     id("io.spring.dependency-management") version "1.1.3"
 }