diff --git a/samples/rest-notes-spring-data-rest/pom.xml b/samples/rest-notes-spring-data-rest/pom.xml
index 36aa3ae7..223ebdfc 100644
--- a/samples/rest-notes-spring-data-rest/pom.xml
+++ b/samples/rest-notes-spring-data-rest/pom.xml
@@ -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 8e7bd07d..1f05c541 100644
--- a/samples/rest-notes-spring-hateoas/build.gradle
+++ b/samples/rest-notes-spring-hateoas/build.gradle
@@ -8,7 +8,7 @@ buildscript {
 }
 
 plugins {
-	id "org.asciidoctor.convert" version "1.5.2"
+	id "org.asciidoctor.convert" version "1.5.3"
 }
 
 apply plugin: 'java'