diff --git a/xdoc/project.xml b/xdoc/project.xml
index 9913edea..f97b5931 100644
--- a/xdoc/project.xml
+++ b/xdoc/project.xml
@@ -105,5 +105,9 @@
       <id>velocity-dvsl</id>
       <version>0.45</version>
     </dependency>
+    <dependency>
+      <id>xml-apis</id>
+      <version>1.0.b2</version>
+    </dependency>
   </dependencies>
 </project>