diff --git a/java/java-cloud-run-hello-world/pom.xml b/java/java-cloud-run-hello-world/pom.xml
index 1a1bfc187..1374d4126 100644
--- a/java/java-cloud-run-hello-world/pom.xml
+++ b/java/java-cloud-run-hello-world/pom.xml
@@ -10,7 +10,7 @@
   <parent>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
-    <version>2.7.18</version>
+    <version>4.0.6</version>
   </parent>
 
   <properties>
diff --git a/java/java-guestbook/backend/pom.xml b/java/java-guestbook/backend/pom.xml
index 5092dfbaf..1100d20e0 100644
--- a/java/java-guestbook/backend/pom.xml
+++ b/java/java-guestbook/backend/pom.xml
@@ -12,7 +12,7 @@
   <parent>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
-    <version>2.7.18</version>
+    <version>4.0.6</version>
     <relativePath/>
   </parent>
 
diff --git a/java/java-guestbook/frontend/pom.xml b/java/java-guestbook/frontend/pom.xml
index f0c75abf9..18ef40c3c 100644
--- a/java/java-guestbook/frontend/pom.xml
+++ b/java/java-guestbook/frontend/pom.xml
@@ -12,7 +12,7 @@
   <parent>
     <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-parent</artifactId>
-      <version>2.7.18</version>
+      <version>4.0.6</version>
     <relativePath/>
   </parent>
 
diff --git a/java/java-hello-world/pom.xml b/java/java-hello-world/pom.xml
index 9e2571b4e..4c3380134 100644
--- a/java/java-hello-world/pom.xml
+++ b/java/java-hello-world/pom.xml
@@ -12,7 +12,7 @@
   <parent>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
-    <version>2.7.18</version>
+    <version>4.0.6</version>
   </parent>
 
   <properties>