diff --git a/complete/build.gradle b/complete/build.gradle
index 82fa5a8..d1999d6 100644
--- a/complete/build.gradle
+++ b/complete/build.gradle
@@ -1,5 +1,5 @@
 plugins {
-  id 'org.springframework.boot' version '4.0.3'
+  id 'org.springframework.boot' version '4.0.5'
   id 'io.spring.dependency-management' version '1.1.7'
   id 'java'
 }
diff --git a/initial/build.gradle b/initial/build.gradle
index 56d9923..b209bee 100644
--- a/initial/build.gradle
+++ b/initial/build.gradle
@@ -1,5 +1,5 @@
 plugins {
-  id 'org.springframework.boot' version '4.0.3'
+  id 'org.springframework.boot' version '4.0.5'
   id 'io.spring.dependency-management' version '1.1.7'
   id 'java'
 }