diff --git a/sample-handler/build.gradle b/sample-handler/build.gradle
index cac262a..30fb79c 100644
--- a/sample-handler/build.gradle
+++ b/sample-handler/build.gradle
@@ -6,7 +6,7 @@ buildscript {
 
    }
    dependencies {
-      classpath("org.springframework.boot:spring-boot-gradle-plugin:3.5.14")
+      classpath("org.springframework.boot:spring-boot-gradle-plugin:4.0.6")
       classpath 'org.asciidoctor:asciidoctor-gradle-plugin:1.5.9.2'
       //classpath 'org.kordamp.gradle:stats-gradle-plugin:0.2.2'
    }