diff --git a/complete/pom.xml b/complete/pom.xml
index 3865461e0..bd15c87b8 100644
--- a/complete/pom.xml
+++ b/complete/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>3.5.6</version>
+		<version>4.0.0</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 	<groupId>com.example</groupId>
diff --git a/initial/pom.xml b/initial/pom.xml
index 6789a3239..9ca6798cf 100644
--- a/initial/pom.xml
+++ b/initial/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>3.5.6</version>
+		<version>4.0.0</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 	<groupId>com.example</groupId>