diff --git a/lib/Elastica/Document.php b/lib/Elastica/Document.php
index <HASH>..<HASH> 100644
--- a/lib/Elastica/Document.php
+++ b/lib/Elastica/Document.php
@@ -137,7 +137,7 @@ class Elastica_Document
      * To use this feature you have to call the following command in the
      * elasticsearch directory:
      * <code>
-     * ./bin/plugin -install elasticsearch/elasticsearch-mapper-attachments/1.2.0
+     * ./bin/plugin -install elasticsearch/elasticsearch-mapper-attachments/1.6.0
      * </code>
      * This installs the tika file analysis plugin. More infos about supported formats
      * can be found here: {@link http://tika.apache.org/0.7/formats.html}
Update reference to elasticsearch mapper plugin