Using variable for asciidoc version
diff --git a/pom.xml b/pom.xml
index 9cd0d5d..0f01f99 100644
--- a/pom.xml
+++ b/pom.xml
@@ -57,6 +57,8 @@
     <!-- The git repository, where the site content is placed -->
     <siteRepositoryUrl>scm:git:https://gitbox.apache.org/repos/asf/archiva-web-content.git</siteRepositoryUrl>
     <site.staging.base>${project.basedir}</site.staging.base>
+
+    <asciidoctor.maven.plugin.version>2.0.0-RC.1</asciidoctor.maven.plugin.version>
   </properties>
 
   <description>Parent Pom for various components used in Apache Archiva and Redback.</description>
@@ -216,6 +218,7 @@
         <version>${junit.jupiter.version}</version>
         <scope>test</scope>
       </dependency>
+
     </dependencies>
   </dependencyManagement>
   <dependencies>
@@ -279,11 +282,12 @@
           <configuration>
             <skipDeploy>true</skipDeploy>
           </configuration>
+
           <dependencies>
             <dependency>
               <groupId>org.asciidoctor</groupId>
               <artifactId>asciidoctor-maven-plugin</artifactId>
-              <version>1.5.8</version>
+              <version>${asciidoctor.maven.plugin.version}</version>
             </dependency>
           </dependencies>
         </plugin>
@@ -355,10 +359,17 @@
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-site-plugin</artifactId>
         <version>3.7.1</version>
-
         <configuration>
+          <!-- disable generateReports if you don't want to include the built-in reports -->
+          <generateReports>true</generateReports>
+          <generateSitemap>true</generateSitemap>
+          <relativizeDecorationLinks>false</relativizeDecorationLinks>
+          <locales>en</locales>
+          <inputEncoding>UTF-8</inputEncoding>
+          <outputEncoding>UTF-8</outputEncoding>
+          <skipDeploy>true</skipDeploy>
           <asciidoc>
-            <!-- site-wide AsciiDoc attributes -->
+            <!-- optional site-wide AsciiDoc attributes -->
             <attributes>
               <icons>font</icons>
               <source-highlighter>coderay</source-highlighter>
@@ -366,22 +377,12 @@
               <toclevels>2</toclevels>
             </attributes>
           </asciidoc>
-          <skipDeploy>true</skipDeploy>
-          <stagingDirectory>${site.staging.base}/target/staging/components/</stagingDirectory>
         </configuration>
-        <executions>
-          <execution>
-            <id>attach-descriptor</id>
-            <goals>
-              <goal>attach-descriptor</goal>
-            </goals>
-          </execution>
-        </executions>
         <dependencies>
-          <dependency><!-- add Asciidoctor Doxia Parser Module -->
+          <dependency>
             <groupId>org.asciidoctor</groupId>
             <artifactId>asciidoctor-maven-plugin</artifactId>
-            <version>1.5.8</version>
+            <version>${asciidoctor.maven.plugin.version}</version>
           </dependency>
         </dependencies>
       </plugin>