diff --git a/documentation/pom.xml b/documentation/pom.xml
index 042680537..8850da641 100644
--- a/documentation/pom.xml
+++ b/documentation/pom.xml
@@ -21,9 +21,9 @@
     <name>MapStruct Documentation</name>
 
     <properties>
-        <asciidoctorj.pdf.version>1.5.3</asciidoctorj.pdf.version>
-        <asciidoctorj.version>1.6.2</asciidoctorj.version>
-        <jruby.version>9.2.6.0</jruby.version>
+        <asciidoctorj.pdf.version>1.6.0</asciidoctorj.pdf.version>
+        <asciidoctorj.version>2.5.1</asciidoctorj.version>
+        <jruby.version>9.2.17.0</jruby.version>
     </properties>
     <dependencies>
     </dependencies>
@@ -33,7 +33,7 @@
             <plugin>
               <groupId>org.asciidoctor</groupId>
               <artifactId>asciidoctor-maven-plugin</artifactId>
-              <version>1.6.0</version>
+              <version>2.1.0</version>
               <dependencies>
                   <dependency>
                       <groupId>org.asciidoctor</groupId>
@@ -52,7 +52,6 @@
                   </dependency>
               </dependencies>
               <configuration>
-                    <sourceHighlighter>coderay</sourceHighlighter>
                     <sourceDocumentName>mapstruct-reference-guide.asciidoc</sourceDocumentName>
                     <attributes>
                         <mapstructVersion>${project.version}</mapstructVersion>
diff --git a/documentation/src/main/asciidoc/mapstruct-reference-guide.asciidoc b/documentation/src/main/asciidoc/mapstruct-reference-guide.asciidoc
index b83c874c5..7bffbca5c 100644
--- a/documentation/src/main/asciidoc/mapstruct-reference-guide.asciidoc
+++ b/documentation/src/main/asciidoc/mapstruct-reference-guide.asciidoc
@@ -2,6 +2,7 @@
 :revdate: {docdate}
 :toc: right
 :sectanchors:
+:source-highlighter: coderay
 :Author: Gunnar Morling, Andreas Gudian, Sjaak Derksen, Filip Hrisafov and the MapStruct community
 :processor-dir: ../../../../processor
 :processor-ap-test: {processor-dir}/src/test/java/org/mapstruct/ap/test