diff --git a/build.gradle b/build.gradle
index 593cde25..8785ee21 100644
--- a/build.gradle
+++ b/build.gradle
@@ -32,7 +32,7 @@ sonarRunner {
 }
 
 ext {
-	springVersion = '4.1.7.RELEASE'
+	springVersion = '4.1.8.RELEASE'
 	javadocLinks = [
 		'http://docs.oracle.com/javase/8/docs/api/',
 		"http://docs.spring.io/spring-framework/docs/$springVersion/javadoc-api/",
diff --git a/samples/rest-notes-spring-data-rest/pom.xml b/samples/rest-notes-spring-data-rest/pom.xml
index 274f9569..a874c40c 100644
--- a/samples/rest-notes-spring-data-rest/pom.xml
+++ b/samples/rest-notes-spring-data-rest/pom.xml
@@ -11,7 +11,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>1.2.6.RELEASE</version>
+		<version>1.2.7.RELEASE</version>
 		<relativePath />
 	</parent>
 
@@ -73,7 +73,7 @@
 			<plugin>
 				<groupId>org.asciidoctor</groupId>
 				<artifactId>asciidoctor-maven-plugin</artifactId>
-				<version>1.5.2</version>
+				<version>1.5.2.1</version>
 				<executions>
 					<execution>
 						<id>generate-docs</id>
diff --git a/samples/rest-notes-spring-hateoas/build.gradle b/samples/rest-notes-spring-hateoas/build.gradle
index 414a9081..555d25ec 100644
--- a/samples/rest-notes-spring-hateoas/build.gradle
+++ b/samples/rest-notes-spring-hateoas/build.gradle
@@ -3,12 +3,12 @@ buildscript {
 		mavenCentral()
 	}
 	dependencies {
-		classpath 'org.springframework.boot:spring-boot-gradle-plugin:1.2.6.RELEASE'
+		classpath 'org.springframework.boot:spring-boot-gradle-plugin:1.2.7.RELEASE'
 	}
 }
 
 plugins {
-	id "org.asciidoctor.convert" version "1.5.2"
+	id "org.asciidoctor.convert" version "1.5.3"
 }
 
 apply plugin: 'java'