diff --git a/project.xml b/project.xml
index 7d5c9f9..0981f47 100644
--- a/project.xml
+++ b/project.xml
@@ -234,7 +234,7 @@ Runtime Optional.
       <groupId>maven</groupId>
       <artifactId>maven-xdoc-plugin</artifactId>
       <version>1.9.2</version>
-      <url>http://maven.apache.org/reference/plugins/xdoc/</url>
+      <url>http://maven.apache.org/maven-1.x/reference/plugins/xdoc/</url>
       <type>plugin</type>
       <properties>
           <comment>