diff --git a/boot-static-docs/build.gradle b/boot-static-docs/build.gradle
index 0d9d73b..5ec1811 100644
--- a/boot-static-docs/build.gradle
+++ b/boot-static-docs/build.gradle
@@ -10,7 +10,7 @@ buildscript {
 }
 
 plugins {
-  id 'org.springframework.boot' version '2.3.1.RELEASE'
+  id 'org.springframework.boot' version '2.5.3'
 }
 
 apply plugin: 'idea'
diff --git a/boot-swagger/build.gradle b/boot-swagger/build.gradle
index 6b7c4ba..618bbf6 100644
--- a/boot-swagger/build.gradle
+++ b/boot-swagger/build.gradle
@@ -1,5 +1,5 @@
 plugins {
-  id 'org.springframework.boot' version '2.3.1.RELEASE'
+  id 'org.springframework.boot' version '2.5.3'
 }
 
 apply plugin: 'idea'
diff --git a/boot-webflux/build.gradle b/boot-webflux/build.gradle
index f4edd4e..7c9efec 100644
--- a/boot-webflux/build.gradle
+++ b/boot-webflux/build.gradle
@@ -1,5 +1,5 @@
 plugins {
-  id 'org.springframework.boot' version '2.3.1.RELEASE'
+  id 'org.springframework.boot' version '2.5.3'
   id 'io.spring.dependency-management' version '1.0.9.RELEASE'
 }
 
diff --git a/boot-webmvc/build.gradle b/boot-webmvc/build.gradle
index f671269..9839b32 100644
--- a/boot-webmvc/build.gradle
+++ b/boot-webmvc/build.gradle
@@ -1,5 +1,5 @@
 plugins {
-  id 'org.springframework.boot' version '2.3.1.RELEASE'
+  id 'org.springframework.boot' version '2.5.3'
   id 'io.spring.dependency-management' version '1.0.9.RELEASE'
 }