diff --git a/ServiceA/pom.xml b/ServiceA/pom.xml
index a79e56d..61aa09e 100644
--- a/ServiceA/pom.xml
+++ b/ServiceA/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.6.3</version>
+		<version>4.0.1</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 	<groupId>com.example</groupId>
diff --git a/ServiceB/pom.xml b/ServiceB/pom.xml
index 096406c..66893fa 100644
--- a/ServiceB/pom.xml
+++ b/ServiceB/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.6.3</version>
+		<version>4.0.1</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 	<groupId>com.example</groupId>