diff --git a/spring-cloud-task-samples/batch-events/pom.xml b/spring-cloud-task-samples/batch-events/pom.xml
index 3f8980f1..39b6520f 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>2.7.8</version>
+		<version>2.6.13</version>
 		<relativePath />
 	</parent>
 
diff --git a/spring-cloud-task-samples/batch-job/pom.xml b/spring-cloud-task-samples/batch-job/pom.xml
index 9fa5cae0..a4b15b14 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>2.7.8</version>
+		<version>2.6.13</version>
 		<relativePath />
 	</parent>
 
diff --git a/spring-cloud-task-samples/jpa-sample/pom.xml b/spring-cloud-task-samples/jpa-sample/pom.xml
index 04996a8c..a4b6deab 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>2.7.8</version>
+		<version>2.6.13</version>
 		<relativePath />
 	</parent>
 
diff --git a/spring-cloud-task-samples/multiple-datasources/pom.xml b/spring-cloud-task-samples/multiple-datasources/pom.xml
index 1e408138..63646a93 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>2.7.8</version>
+		<version>2.6.13</version>
 		<relativePath />
 	</parent>
 
diff --git a/spring-cloud-task-samples/partitioned-batch-job/pom.xml b/spring-cloud-task-samples/partitioned-batch-job/pom.xml
index cf3e9eff..f722d9ff 100644
--- a/spring-cloud-task-samples/partitioned-batch-job/pom.xml
+++ b/spring-cloud-task-samples/partitioned-batch-job/pom.xml
@@ -12,7 +12,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.7.8</version>
+		<version>2.6.13</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 e6c97efc..2904747b 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>2.7.8</version>
+		<version>2.6.13</version>
 		<relativePath />
 	</parent>
 
diff --git a/spring-cloud-task-samples/task-events/pom.xml b/spring-cloud-task-samples/task-events/pom.xml
index a25a7d03..245dd0a2 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>2.7.8</version>
+		<version>2.6.13</version>
 		<relativePath />
 	</parent>
 
diff --git a/spring-cloud-task-samples/taskprocessor/pom.xml b/spring-cloud-task-samples/taskprocessor/pom.xml
index f8c045ae..14db04d3 100644
--- a/spring-cloud-task-samples/taskprocessor/pom.xml
+++ b/spring-cloud-task-samples/taskprocessor/pom.xml
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.7.8</version>
+		<version>2.6.13</version>
 		<relativePath />
 	</parent>
 
diff --git a/spring-cloud-task-samples/tasksink/pom.xml b/spring-cloud-task-samples/tasksink/pom.xml
index 11d47e52..40c1114d 100644
--- a/spring-cloud-task-samples/tasksink/pom.xml
+++ b/spring-cloud-task-samples/tasksink/pom.xml
@@ -15,7 +15,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.7.8</version>
+		<version>2.6.13</version>
 		<relativePath />
 	</parent>
 
diff --git a/spring-cloud-task-samples/timestamp/pom.xml b/spring-cloud-task-samples/timestamp/pom.xml
index 63bad68d..92214044 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>2.7.8</version>
+		<version>2.6.13</version>
 		<relativePath />
 	</parent>