diff --git a/spring-cloud-task-samples/batch-events/pom.xml b/spring-cloud-task-samples/batch-events/pom.xml
index 7aa4ec409..f70632df7 100644
--- a/spring-cloud-task-samples/batch-events/pom.xml
+++ b/spring-cloud-task-samples/batch-events/pom.xml
@@ -13,7 +13,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>4.0.2</version>
+		<version>4.0.6</version>
 		<relativePath />
 	</parent>
 
diff --git a/spring-cloud-task-samples/batch-job/pom.xml b/spring-cloud-task-samples/batch-job/pom.xml
index 9baffff21..fad72d720 100644
--- a/spring-cloud-task-samples/batch-job/pom.xml
+++ b/spring-cloud-task-samples/batch-job/pom.xml
@@ -13,7 +13,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>4.0.2</version>
+		<version>4.0.6</version>
 		<relativePath />
 	</parent>
 
diff --git a/spring-cloud-task-samples/jpa-sample/pom.xml b/spring-cloud-task-samples/jpa-sample/pom.xml
index fa1260a3e..2021307b2 100644
--- a/spring-cloud-task-samples/jpa-sample/pom.xml
+++ b/spring-cloud-task-samples/jpa-sample/pom.xml
@@ -13,7 +13,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>4.0.2</version>
+		<version>4.0.6</version>
 		<relativePath />
 	</parent>
 
diff --git a/spring-cloud-task-samples/multiple-datasources/pom.xml b/spring-cloud-task-samples/multiple-datasources/pom.xml
index b229702eb..8c36d58c9 100644
--- a/spring-cloud-task-samples/multiple-datasources/pom.xml
+++ b/spring-cloud-task-samples/multiple-datasources/pom.xml
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>4.0.2</version>
+		<version>4.0.6</version>
 		<relativePath />
 	</parent>
 
diff --git a/spring-cloud-task-samples/single-step-batch-job/pom.xml b/spring-cloud-task-samples/single-step-batch-job/pom.xml
index a483e6e08..b5cac0c14 100644
--- a/spring-cloud-task-samples/single-step-batch-job/pom.xml
+++ b/spring-cloud-task-samples/single-step-batch-job/pom.xml
@@ -13,7 +13,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>4.0.2</version>
+		<version>4.0.6</version>
 		<relativePath />
 	</parent>
 
diff --git a/spring-cloud-task-samples/task-events/pom.xml b/spring-cloud-task-samples/task-events/pom.xml
index d8a9de613..0368a9c29 100644
--- a/spring-cloud-task-samples/task-events/pom.xml
+++ b/spring-cloud-task-samples/task-events/pom.xml
@@ -13,7 +13,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>4.0.2</version>
+		<version>4.0.6</version>
 		<relativePath />
 	</parent>
 
diff --git a/spring-cloud-task-samples/task-observations/pom.xml b/spring-cloud-task-samples/task-observations/pom.xml
index cc1f8e3a9..0680a871e 100644
--- a/spring-cloud-task-samples/task-observations/pom.xml
+++ b/spring-cloud-task-samples/task-observations/pom.xml
@@ -15,7 +15,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>4.0.2</version>
+		<version>4.0.6</version>
 		<relativePath />
 	</parent>
 
diff --git a/spring-cloud-task-samples/timestamp/pom.xml b/spring-cloud-task-samples/timestamp/pom.xml
index 3be1f66ce..e092bf83a 100644
--- a/spring-cloud-task-samples/timestamp/pom.xml
+++ b/spring-cloud-task-samples/timestamp/pom.xml
@@ -13,7 +13,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>4.0.2</version>
+		<version>4.0.6</version>
 		<relativePath />
 	</parent>