diff --git a/pom.xml b/pom.xml
index 7c30180..6908c65 100644
--- a/pom.xml
+++ b/pom.xml
@@ -264,8 +264,9 @@
       <reporting>
         <plugins>
           <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
             <artifactId>maven-javadoc-plugin</artifactId>
-            <version>2.8.1</version>
+            <version>2.9</version>
           </plugin>
         </plugins>
       </reporting>