diff --git a/spring-cloud-task-samples/batch-events/pom.xml b/spring-cloud-task-samples/batch-events/pom.xml
index 7aa4ec409..7e8a319b1 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>4.0.5</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..200a3ca93 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>4.0.5</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..165fc1fe5 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>4.0.5</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..b833bd5fb 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>4.0.5</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..a2415f1e7 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>4.0.5</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..45ab9eb27 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>4.0.5</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..1a6cd7c5e 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>4.0.5</version>
 		<relativePath />
 	</parent>
 
diff --git a/spring-cloud-task-samples/timestamp/pom.xml b/spring-cloud-task-samples/timestamp/pom.xml
index 3be1f66ce..bc5bc6fc6 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>4.0.5</version>
 		<relativePath />
 	</parent>