diff --git a/pom.xml b/pom.xml
index 43ba861e56..7b3023babd 100644
--- a/pom.xml
+++ b/pom.xml
@@ -179,7 +179,7 @@
         <plugin>
           <groupId>org.codehaus.modello</groupId>
           <artifactId>modello-maven-plugin</artifactId>
-          <version>1.0-alpha-18</version>
+          <version>1.0-alpha-13</version>
           <executions>
             <execution>
               <id>site-docs</id>