diff --git a/web_widget_mpld3_chart/README.rst b/web_widget_mpld3_chart/README.rst
index 6360236e9..a19561e71 100644
--- a/web_widget_mpld3_chart/README.rst
+++ b/web_widget_mpld3_chart/README.rst
@@ -110,6 +110,10 @@ Other credits
 * This module uses the library `mpld3 <https://github.com/mpld3/mpld3>`__
   which is under the open-source BSD 3-clause "New" or "Revised" License.
   Copyright (c) 2013, Jake Vanderplas
+* This module uses the library `BeautifulSoup 4 <https://pypi.org/project/beautifulsoup4/>`__
+  which is under the open-source MIT License.
+  Copyright (c) 2014, Leonard Richardson
+
 * Odoo Community Association (OCA)
 
 Maintainers
diff --git a/web_widget_mpld3_chart/static/description/index.html b/web_widget_mpld3_chart/static/description/index.html
index b385031e7..8f74fa340 100644
--- a/web_widget_mpld3_chart/static/description/index.html
+++ b/web_widget_mpld3_chart/static/description/index.html
@@ -3,7 +3,7 @@
 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<meta name="generator" content="Docutils: http://docutils.sourceforge.net/" />
+<meta name="generator" content="Docutils 0.15.1: http://docutils.sourceforge.net/" />
 <title>Web Widget mpld3 Chart</title>
 <style type="text/css">
 
@@ -465,6 +465,9 @@ If you spotted it first, help us smashing it by providing a detailed and welcome
 <li>This module uses the library <a class="reference external" href="https://github.com/mpld3/mpld3">mpld3</a>
 which is under the open-source BSD 3-clause “New” or “Revised” License.
 Copyright (c) 2013, Jake Vanderplas</li>
+<li>This module uses the library <a class="reference external" href="https://pypi.org/project/beautifulsoup4/">BeautifulSoup 4</a>
+which is under the open-source MIT License.
+Copyright (c) 2014, Leonard Richardson</li>
 <li>Odoo Community Association (OCA)</li>
 </ul>
 </div>
