diff --git a/pom.xml b/pom.xml
index 556df16e..67efc681 100644
--- a/pom.xml
+++ b/pom.xml
@@ -30,7 +30,7 @@ under the License.
   </parent>
 
   <artifactId>maven-site-plugin</artifactId>
-  <version>3.8.3-SNAPSHOT</version>
+  <version>3.9.0-SNAPSHOT</version>
   <packaging>maven-plugin</packaging>
 
   <name>Apache Maven Site Plugin</name>
@@ -283,7 +283,7 @@ under the License.
     <dependency>
       <groupId>org.apache.maven</groupId>
       <artifactId>maven-archiver</artifactId>
-      <version>3.1.1</version>
+      <version>3.5.0</version>
     </dependency>
 
     <!-- dependencies to annotations -->
@@ -302,7 +302,7 @@ under the License.
     <dependency>
       <groupId>org.codehaus.plexus</groupId>
       <artifactId>plexus-archiver</artifactId>
-      <version>3.4</version>
+      <version>4.2.1</version>
     </dependency>
 
     <dependency>
@@ -319,7 +319,7 @@ under the License.
     <dependency>
       <groupId>org.codehaus.plexus</groupId>
       <artifactId>plexus-utils</artifactId>
-      <version>3.0.24</version>
+      <version>3.3.0</version>
     </dependency>
 
     <dependency>
diff --git a/src/it/projects/site-jar/pom.xml b/src/it/projects/site-jar/pom.xml
index dcd739ff..d76a8eaf 100644
--- a/src/it/projects/site-jar/pom.xml
+++ b/src/it/projects/site-jar/pom.xml
@@ -34,6 +34,7 @@ under the License.
   <properties>
     <currentVersion>2.0.7</currentVersion>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <project.build.outputTimestamp>2019-11-02T17:48:12Z</project.build.outputTimestamp>
   </properties>
 
   <distributionManagement>
diff --git a/src/it/projects/site-jar/verify.bsh b/src/it/projects/site-jar/verify.bsh
index d28a2421..c512531b 100644
--- a/src/it/projects/site-jar/verify.bsh
+++ b/src/it/projects/site-jar/verify.bsh
@@ -50,6 +50,11 @@ try
     while ( jarEntries.hasMoreElements() )
     {
         JarEntry entry = (JarEntry) jarEntries.nextElement();
+        if ( entry.getTime() != 1572713292000L )
+        {
+            System.out.println( "wrong entry time for " + entry.getName() + ": " + entry.getTime() );
+            return false;
+        }
         if ( !entry.isDirectory() )
         {
             // Only compare files
diff --git a/src/main/java/org/apache/maven/plugins/site/render/SiteJarMojo.java b/src/main/java/org/apache/maven/plugins/site/render/SiteJarMojo.java
index 211eb6a1..26be6d40 100644
--- a/src/main/java/org/apache/maven/plugins/site/render/SiteJarMojo.java
+++ b/src/main/java/org/apache/maven/plugins/site/render/SiteJarMojo.java
@@ -115,6 +115,16 @@ public class SiteJarMojo
     @Parameter
     private String[] archiveExcludes;
 
+    /**
+     * Timestamp for reproducible output archive entries, either formatted as ISO 8601
+     * <code>yyyy-MM-dd'T'HH:mm:ssXXX</code> or as an int representing seconds since the epoch (like
+     * <a href="https://reproducible-builds.org/docs/source-date-epoch/">SOURCE_DATE_EPOCH</a>).
+     *
+     * @since 3.9.0
+     */
+    @Parameter( defaultValue = "${project.build.outputTimestamp}" )
+    private String outputTimestamp;
+
     /**
      * @see org.apache.maven.plugin.Mojo#execute()
      */
@@ -179,14 +189,18 @@ private File createArchive( File siteDirectory, String jarFilename )
         File siteJar = new File( jarOutputDirectory, jarFilename );
 
         MavenArchiver archiver = new MavenArchiver();
+        archiver.setCreatedBy( "Maven Site Plugin", "org.apache.maven.plugins", "maven-site-plugin" );
 
         archiver.setArchiver( this.jarArchiver );
 
         archiver.setOutputFile( siteJar );
 
+        // configure for Reproducible Builds based on outputTimestamp value
+        archiver.configureReproducible( outputTimestamp );
+
         if ( !siteDirectory.isDirectory() )
         {
-            getLog().warn( "JAR will be empty - no content was marked for inclusion !" );
+            getLog().warn( "JAR will be empty - no content was marked for inclusion!" );
         }
         else
         {