diff --git a/extensions/extension-doc-helper/pom.xml b/extensions/extension-doc-helper/pom.xml
index 18d09b6..e07ff90 100644
--- a/extensions/extension-doc-helper/pom.xml
+++ b/extensions/extension-doc-helper/pom.xml
@@ -91,7 +91,7 @@
       <plugin> <!-- note: this execution needs pre-site to have been executed on extensions/ first -->
         <groupId>org.codehaus.gmaven</groupId>
         <artifactId>groovy-maven-plugin</artifactId>
-        <version>2.0</version>
+        <version>2.1.1</version>
         <inherited>false</inherited>
         <executions>
           <execution>