diff --git a/complete/build.gradle b/complete/build.gradle
index 269f08d..9c209fe 100644
--- a/complete/build.gradle
+++ b/complete/build.gradle
@@ -1,5 +1,5 @@
 plugins {
-	id 'org.springframework.boot' version '3.3.0'
+	id 'org.springframework.boot' version '3.4.0'
 	id 'java'
 }
 
diff --git a/initial/build.gradle b/initial/build.gradle
index 09f46e8..ea64a4b 100644
--- a/initial/build.gradle
+++ b/initial/build.gradle
@@ -1,6 +1,6 @@
 plugins {
 	id 'java'
-	id 'org.springframework.boot' version '3.3.0'
+	id 'org.springframework.boot' version '3.4.0'
 }
 
 apply plugin: 'io.spring.dependency-management'