diff --git a/sample-maven/pom.xml b/sample-maven/pom.xml
index 5291282..3a08112 100644
--- a/sample-maven/pom.xml
+++ b/sample-maven/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>4.0.5</version>
+        <version>4.0.6</version>
     </parent>
 
     <groupId>org.dddjava.jig</groupId>