diff --git a/rest-assured/build.gradle b/rest-assured/build.gradle
index 32f0080..427a0d0 100644
--- a/rest-assured/build.gradle
+++ b/rest-assured/build.gradle
@@ -1,13 +1,12 @@
 plugins {
 	id "java"
 	id "org.asciidoctor.jvm.convert" version "3.3.2"
-	id "org.springframework.boot" version "3.0.0-M4"
+	id "org.springframework.boot" version "3.3.0"
 }
 
 apply plugin: 'io.spring.dependency-management'
 
 repositories {
-	maven { url 'https://repo.spring.io/milestone' }
 	mavenCentral()
 }
 
diff --git a/restful-notes-slate/build.gradle b/restful-notes-slate/build.gradle
index cdf5dba..ff84aca 100644
--- a/restful-notes-slate/build.gradle
+++ b/restful-notes-slate/build.gradle
@@ -1,12 +1,11 @@
 plugins {
 	id "java"
-	id "org.springframework.boot" version "3.0.0-M4"
+	id "org.springframework.boot" version "3.3.0"
 }
 
 apply plugin: 'io.spring.dependency-management'
 
 repositories {
-	maven { url 'https://repo.spring.io/milestone' }
 	mavenCentral()
 }
 
diff --git a/restful-notes-spring-data-rest/pom.xml b/restful-notes-spring-data-rest/pom.xml
index c9c84a6..1156db4 100644
--- a/restful-notes-spring-data-rest/pom.xml
+++ b/restful-notes-spring-data-rest/pom.xml
@@ -11,7 +11,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>3.0.0-M4</version>
+		<version>3.3.0</version>
 		<relativePath />
 	</parent>
 
@@ -111,25 +111,4 @@
 		</plugins>
 	</build>
 
-	<repositories>
-		<repository>
-			<id>spring-milestones</id>
-			<name>Spring milestones</name>
-			<url>https://repo.spring.io/milestone</url>
-			<snapshots>
-				<enabled>false</enabled>
-			</snapshots>
-		</repository>
-	</repositories>
-	<pluginRepositories>
-		<pluginRepository>
-			<id>spring-milestones</id>
-			<name>Spring milestones</name>
-			<url>https://repo.spring.io/milestone</url>
-			<snapshots>
-				<enabled>false</enabled>
-			</snapshots>
-		</pluginRepository>
-	</pluginRepositories>
-
 </project>
diff --git a/restful-notes-spring-hateoas/build.gradle b/restful-notes-spring-hateoas/build.gradle
index 1f44075..ad700b9 100644
--- a/restful-notes-spring-hateoas/build.gradle
+++ b/restful-notes-spring-hateoas/build.gradle
@@ -1,13 +1,12 @@
 plugins {
 	id "java"
 	id "org.asciidoctor.jvm.convert" version "3.3.2"
-	id "org.springframework.boot" version "3.0.0-M4"
+	id "org.springframework.boot" version "3.3.0"
 }
 
 apply plugin: 'io.spring.dependency-management'
 
 repositories {
-	maven { url 'https://repo.spring.io/milestone' }
 	mavenCentral()
 }
 
diff --git a/testng/build.gradle b/testng/build.gradle
index 7a12fb6..d8b549c 100644
--- a/testng/build.gradle
+++ b/testng/build.gradle
@@ -1,13 +1,12 @@
 plugins {
 	id "java"
 	id "org.asciidoctor.jvm.convert" version "3.3.2"
-	id "org.springframework.boot" version "3.0.0-M4"
+	id "org.springframework.boot" version "3.3.0"
 }
 
 apply plugin: 'io.spring.dependency-management'
 
 repositories {
-	maven { url 'https://repo.spring.io/milestone' }
 	mavenCentral()
 }
 
diff --git a/web-test-client/build.gradle b/web-test-client/build.gradle
index 0f4b289..3db782b 100644
--- a/web-test-client/build.gradle
+++ b/web-test-client/build.gradle
@@ -1,13 +1,12 @@
 plugins {
 	id "java"
 	id "org.asciidoctor.jvm.convert" version "3.3.2"
-	id "org.springframework.boot" version "3.0.0-M4"
+	id "org.springframework.boot" version "3.3.0"
 }
 
  apply plugin: 'io.spring.dependency-management'
 
 repositories {
-	maven { url 'https://repo.spring.io/milestone' }
 	mavenCentral()
 }