diff --git a/base_external_dbsource_mysql/README.rst b/base_external_dbsource_mysql/README.rst
index 96f16401..fbd5ad3e 100644
--- a/base_external_dbsource_mysql/README.rst
+++ b/base_external_dbsource_mysql/README.rst
@@ -14,13 +14,13 @@ External Database Source - MySQL
     :target: http://www.gnu.org/licenses/lgpl-3.0-standalone.html
     :alt: License: LGPL-3
 .. |badge3| image:: https://img.shields.io/badge/github-OCA%2Fserver--backend-lightgray.png?logo=github
-    :target: https://github.com/OCA/server-backend/tree/13.0/base_external_dbsource_mysql
+    :target: https://github.com/OCA/server-backend/tree/15.0/base_external_dbsource_mysql
     :alt: OCA/server-backend
 .. |badge4| image:: https://img.shields.io/badge/weblate-Translate%20me-F47D42.png
-    :target: https://translation.odoo-community.org/projects/server-backend-13-0/server-backend-13-0-base_external_dbsource_mysql
+    :target: https://translation.odoo-community.org/projects/server-backend-15-0/server-backend-15-0-base_external_dbsource_mysql
     :alt: Translate me on Weblate
 .. |badge5| image:: https://img.shields.io/badge/runbot-Try%20me-875A7B.png
-    :target: https://runbot.odoo-community.org/runbot/253/13.0
+    :target: https://runbot.odoo-community.org/runbot/253/15.0
     :alt: Try me on Runbot
 
 |badge1| |badge2| |badge3| |badge4| |badge5| 
@@ -73,7 +73,7 @@ Bug Tracker
 Bugs are tracked on `GitHub Issues <https://github.com/OCA/server-backend/issues>`_.
 In case of trouble, please check there if your issue has already been reported.
 If you spotted it first, help us smashing it by providing a detailed and welcomed
-`feedback <https://github.com/OCA/server-backend/issues/new?body=module:%20base_external_dbsource_mysql%0Aversion:%2013.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
+`feedback <https://github.com/OCA/server-backend/issues/new?body=module:%20base_external_dbsource_mysql%0Aversion:%2015.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
 
 Do not contact contributors directly about support or help with technical issues.
 
@@ -93,7 +93,10 @@ Contributors
 * Maxime Chambreuil <maxime.chambreuil@savoirfairelinux.com>
 * Gervais Naoussi <gervaisnaoussi@gmail.com>
 * Dave Lasley <dave@laslabs.com>
-* Sergio Teruel <sergio.teruel@tecnativa.com>
+
+* `Tecnativa <https://www.tecnativa.com>`_:
+
+    * Sergio Teruel
 * David Alonso <david.alonso@solvos.es>
 
 Maintainers
@@ -109,6 +112,6 @@ OCA, or the Odoo Community Association, is a nonprofit organization whose
 mission is to support the collaborative development of Odoo features and
 promote its widespread use.
 
-This module is part of the `OCA/server-backend <https://github.com/OCA/server-backend/tree/13.0/base_external_dbsource_mysql>`_ project on GitHub.
+This module is part of the `OCA/server-backend <https://github.com/OCA/server-backend/tree/15.0/base_external_dbsource_mysql>`_ project on GitHub.
 
 You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.
diff --git a/base_external_dbsource_mysql/__manifest__.py b/base_external_dbsource_mysql/__manifest__.py
index 0d395371..36ca9f0f 100644
--- a/base_external_dbsource_mysql/__manifest__.py
+++ b/base_external_dbsource_mysql/__manifest__.py
@@ -3,7 +3,7 @@
 # License LGPL-3.0 or later (http://www.gnu.org/licenses/lgpl).
 {
     "name": "External Database Source - MySQL",
-    "version": "13.0.1.0.0",
+    "version": "15.0.1.0.0",
     "category": "Tools",
     "author": "Daniel Reis, LasLabs, Odoo Community Association (OCA)",
     "website": "https://github.com/OCA/server-backend",
diff --git a/base_external_dbsource_mysql/readme/CONTRIBUTORS.rst b/base_external_dbsource_mysql/readme/CONTRIBUTORS.rst
index 49c84834..cc58ac64 100644
--- a/base_external_dbsource_mysql/readme/CONTRIBUTORS.rst
+++ b/base_external_dbsource_mysql/readme/CONTRIBUTORS.rst
@@ -2,5 +2,8 @@
 * Maxime Chambreuil <maxime.chambreuil@savoirfairelinux.com>
 * Gervais Naoussi <gervaisnaoussi@gmail.com>
 * Dave Lasley <dave@laslabs.com>
-* Sergio Teruel <sergio.teruel@tecnativa.com>
+
+* `Tecnativa <https://www.tecnativa.com>`_:
+
+    * Sergio Teruel
 * David Alonso <david.alonso@solvos.es>
diff --git a/base_external_dbsource_mysql/static/description/index.html b/base_external_dbsource_mysql/static/description/index.html
index a488744f..99ccc520 100644
--- a/base_external_dbsource_mysql/static/description/index.html
+++ b/base_external_dbsource_mysql/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 0.15.1: http://docutils.sourceforge.net/" />
+<meta name="generator" content="Docutils: http://docutils.sourceforge.net/" />
 <title>External Database Source - MySQL</title>
 <style type="text/css">
 
@@ -367,7 +367,7 @@ ul.auto-toc {
 !! This file is generated by oca-gen-addon-readme !!
 !! changes will be overwritten.                   !!
 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
-<p><a class="reference external" href="https://odoo-community.org/page/development-status"><img alt="Beta" src="https://img.shields.io/badge/maturity-Beta-yellow.png" /></a> <a class="reference external" href="http://www.gnu.org/licenses/lgpl-3.0-standalone.html"><img alt="License: LGPL-3" src="https://img.shields.io/badge/licence-LGPL--3-blue.png" /></a> <a class="reference external" href="https://github.com/OCA/server-backend/tree/13.0/base_external_dbsource_mysql"><img alt="OCA/server-backend" src="https://img.shields.io/badge/github-OCA%2Fserver--backend-lightgray.png?logo=github" /></a> <a class="reference external" href="https://translation.odoo-community.org/projects/server-backend-13-0/server-backend-13-0-base_external_dbsource_mysql"><img alt="Translate me on Weblate" src="https://img.shields.io/badge/weblate-Translate%20me-F47D42.png" /></a> <a class="reference external" href="https://runbot.odoo-community.org/runbot/253/13.0"><img alt="Try me on Runbot" src="https://img.shields.io/badge/runbot-Try%20me-875A7B.png" /></a></p>
+<p><a class="reference external" href="https://odoo-community.org/page/development-status"><img alt="Beta" src="https://img.shields.io/badge/maturity-Beta-yellow.png" /></a> <a class="reference external" href="http://www.gnu.org/licenses/lgpl-3.0-standalone.html"><img alt="License: LGPL-3" src="https://img.shields.io/badge/licence-LGPL--3-blue.png" /></a> <a class="reference external" href="https://github.com/OCA/server-backend/tree/15.0/base_external_dbsource_mysql"><img alt="OCA/server-backend" src="https://img.shields.io/badge/github-OCA%2Fserver--backend-lightgray.png?logo=github" /></a> <a class="reference external" href="https://translation.odoo-community.org/projects/server-backend-15-0/server-backend-15-0-base_external_dbsource_mysql"><img alt="Translate me on Weblate" src="https://img.shields.io/badge/weblate-Translate%20me-F47D42.png" /></a> <a class="reference external" href="https://runbot.odoo-community.org/runbot/253/15.0"><img alt="Try me on Runbot" src="https://img.shields.io/badge/runbot-Try%20me-875A7B.png" /></a></p>
 <p>This module extends <tt class="docutils literal">base_external_dbsource</tt>, allowing you to connect to
 foreign MySQL databases using SQLAlchemy.</p>
 <p><strong>Table of contents</strong></p>
@@ -425,7 +425,7 @@ Database Structure &gt; Database sources.</li>
 <p>Bugs are tracked on <a class="reference external" href="https://github.com/OCA/server-backend/issues">GitHub Issues</a>.
 In case of trouble, please check there if your issue has already been reported.
 If you spotted it first, help us smashing it by providing a detailed and welcomed
-<a class="reference external" href="https://github.com/OCA/server-backend/issues/new?body=module:%20base_external_dbsource_mysql%0Aversion:%2013.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**">feedback</a>.</p>
+<a class="reference external" href="https://github.com/OCA/server-backend/issues/new?body=module:%20base_external_dbsource_mysql%0Aversion:%2015.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**">feedback</a>.</p>
 <p>Do not contact contributors directly about support or help with technical issues.</p>
 </div>
 <div class="section" id="credits">
@@ -439,13 +439,24 @@ If you spotted it first, help us smashing it by providing a detailed and welcome
 </div>
 <div class="section" id="contributors">
 <h2><a class="toc-backref" href="#id8">Contributors</a></h2>
+<ul>
+<li><p class="first">Daniel Reis &lt;<a class="reference external" href="mailto:dreis.pt&#64;hotmail.com">dreis.pt&#64;hotmail.com</a>&gt;</p>
+</li>
+<li><p class="first">Maxime Chambreuil &lt;<a class="reference external" href="mailto:maxime.chambreuil&#64;savoirfairelinux.com">maxime.chambreuil&#64;savoirfairelinux.com</a>&gt;</p>
+</li>
+<li><p class="first">Gervais Naoussi &lt;<a class="reference external" href="mailto:gervaisnaoussi&#64;gmail.com">gervaisnaoussi&#64;gmail.com</a>&gt;</p>
+</li>
+<li><p class="first">Dave Lasley &lt;<a class="reference external" href="mailto:dave&#64;laslabs.com">dave&#64;laslabs.com</a>&gt;</p>
+</li>
+<li><p class="first"><a class="reference external" href="https://www.tecnativa.com">Tecnativa</a>:</p>
+<blockquote>
 <ul class="simple">
-<li>Daniel Reis &lt;<a class="reference external" href="mailto:dreis.pt&#64;hotmail.com">dreis.pt&#64;hotmail.com</a>&gt;</li>
-<li>Maxime Chambreuil &lt;<a class="reference external" href="mailto:maxime.chambreuil&#64;savoirfairelinux.com">maxime.chambreuil&#64;savoirfairelinux.com</a>&gt;</li>
-<li>Gervais Naoussi &lt;<a class="reference external" href="mailto:gervaisnaoussi&#64;gmail.com">gervaisnaoussi&#64;gmail.com</a>&gt;</li>
-<li>Dave Lasley &lt;<a class="reference external" href="mailto:dave&#64;laslabs.com">dave&#64;laslabs.com</a>&gt;</li>
-<li>Sergio Teruel &lt;<a class="reference external" href="mailto:sergio.teruel&#64;tecnativa.com">sergio.teruel&#64;tecnativa.com</a>&gt;</li>
-<li>David Alonso &lt;<a class="reference external" href="mailto:david.alonso&#64;solvos.es">david.alonso&#64;solvos.es</a>&gt;</li>
+<li>Sergio Teruel</li>
+</ul>
+</blockquote>
+</li>
+<li><p class="first">David Alonso &lt;<a class="reference external" href="mailto:david.alonso&#64;solvos.es">david.alonso&#64;solvos.es</a>&gt;</p>
+</li>
 </ul>
 </div>
 <div class="section" id="maintainers">
@@ -455,7 +466,7 @@ If you spotted it first, help us smashing it by providing a detailed and welcome
 <p>OCA, or the Odoo Community Association, is a nonprofit organization whose
 mission is to support the collaborative development of Odoo features and
 promote its widespread use.</p>
-<p>This module is part of the <a class="reference external" href="https://github.com/OCA/server-backend/tree/13.0/base_external_dbsource_mysql">OCA/server-backend</a> project on GitHub.</p>
+<p>This module is part of the <a class="reference external" href="https://github.com/OCA/server-backend/tree/15.0/base_external_dbsource_mysql">OCA/server-backend</a> project on GitHub.</p>
 <p>You are welcome to contribute. To learn how please visit <a class="reference external" href="https://odoo-community.org/page/Contribute">https://odoo-community.org/page/Contribute</a>.</p>
 </div>
 </div>
diff --git a/base_external_dbsource_mysql/tests/test_base_external_dbsource.py b/base_external_dbsource_mysql/tests/test_base_external_dbsource.py
index f276b9e3..f80c5c45 100644
--- a/base_external_dbsource_mysql/tests/test_base_external_dbsource.py
+++ b/base_external_dbsource_mysql/tests/test_base_external_dbsource.py
@@ -11,7 +11,7 @@ ADAPTER = (
 
 class TestBaseExternalDbsource(common.TransactionCase):
     def setUp(self):
-        super(TestBaseExternalDbsource, self).setUp()
+        super().setUp()
         self.dbsource = self.env.ref("base_external_dbsource_mysql.demo_mysql")
 
     def test_connection_close_mysql(self):
@@ -22,13 +22,15 @@ class TestBaseExternalDbsource(common.TransactionCase):
 
     def test_connection_open_mysql(self):
         """It should call SQLAlchemy open"""
-        with mock.patch.object(self.dbsource, "connection_open_mysql") as parent_method:
+        with mock.patch.object(
+            type(self.dbsource), "connection_open_mysql"
+        ) as parent_method:
             self.dbsource.connection_open_mysql()
             parent_method.assert_called_once_with()
 
     def test_excecute_mysql(self):
         """It should pass args to SQLAlchemy execute"""
         expect = "sqlquery", "sqlparams", "metadata"
-        with mock.patch.object(self.dbsource, "execute_mysql") as parent_method:
+        with mock.patch.object(type(self.dbsource), "execute_mysql") as parent_method:
             self.dbsource.execute_mysql(*expect)
             parent_method.assert_called_once_with(*expect)