diff --git a/docs/conf.py b/docs/conf.py
index <HASH>..<HASH> 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -18,7 +18,7 @@ import os
 html_context = {
   'version' : '3.1',
   'full_version' : '3.1.9',
-  'maven_plugin_version' : '3.1.8',
+  'maven_plugin_version' : '3.1.9',
   'gradle_plugin_version' : '1.6.5',
   'archetype_version' : '0.2.2'
 }
bump up maven plugin version to the latest