diff --git a/server_environment_ir_config_parameter/__manifest__.py b/server_environment_ir_config_parameter/__manifest__.py
index a48e34a..8f1c592 100644
--- a/server_environment_ir_config_parameter/__manifest__.py
+++ b/server_environment_ir_config_parameter/__manifest__.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # Copyright 2016 ACSONE SA/NV
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
@@ -6,7 +5,7 @@
     'name': 'Server Environment Ir Config Parameter',
     'summary': """
         Override System Parameters from server environment file""",
-    'version': '10.0.1.0.1',
+    'version': '11.0.1.0.0',
     'license': 'AGPL-3',
     'author': 'ACSONE SA/NV,Odoo Community Association (OCA)',
     'website': 'https://odoo-community.org/',
diff --git a/server_environment_ir_config_parameter/models/ir_config_parameter.py b/server_environment_ir_config_parameter/models/ir_config_parameter.py
index ea52aec..7244aea 100644
--- a/server_environment_ir_config_parameter/models/ir_config_parameter.py
+++ b/server_environment_ir_config_parameter/models/ir_config_parameter.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # Copyright 2016 ACSONE SA/NV
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
diff --git a/server_environment_ir_config_parameter/tests/test_server_environment_ircp.py b/server_environment_ir_config_parameter/tests/test_server_environment_ircp.py
index bcffa9c..c29e13e 100644
--- a/server_environment_ir_config_parameter/tests/test_server_environment_ircp.py
+++ b/server_environment_ir_config_parameter/tests/test_server_environment_ircp.py
@@ -1,8 +1,7 @@
-# -*- coding: utf-8 -*-
 # Copyright 2016 ACSONE SA/NV
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
-from cStringIO import StringIO
+from io import StringIO
 
 from odoo.exceptions import UserError
 from odoo.tests import common