diff --git a/CHANGES.rst b/CHANGES.rst
index e6c75b2..87056a4 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,6 +1,13 @@
 Changelog
 =========
 
+0.3.1
+-----
+
+- Fix: ES 6.2 compatibility.
+
+  `Issue #9 <https://github.com/pierky/pmacct-to-elasticsearch/issues/9>`.
+
 0.3.0
 -----
 
diff --git a/pierky/p2es/version.py b/pierky/p2es/version.py
index b727e07..96a3d42 100644
--- a/pierky/p2es/version.py
+++ b/pierky/p2es/version.py
@@ -1,4 +1,4 @@
 # This code is Copyright 2014-2017 by Pier Carlo Chiodi.
 # See full license in LICENSE file.
 
-__version__ = "0.3.0"
+__version__ = "0.3.1"