diff --git a/.drone.yml b/.drone.yml
index e0bc2f7026..5da6083eb7 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -25,12 +25,6 @@ services:
 
 matrix:
     include:
-        - IMAGE: python:2.7
-          TOXENV: py27
-          DATABASE: sqlite
-        - IMAGE: python:2.7
-          TOXENV: py27
-          DATABASE: postgresql
         - IMAGE: python:3.4
           TOXENV: py34
           DATABASE: sqlite
diff --git a/CHANGELOG b/CHANGELOG
index 1ec6e51a1b..b9ba1fd682 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,5 @@
+* Remove support for Python 2.7
+
 Version 4.8.0 - 2018-04-23
 * Bug fixes (see mercurial logs for details)
 
@@ -18,4 +20,4 @@ Version 3.8.0 - 2015-11-02
 * Bug fixes (see mercurial logs for details)
 
 Version 3.6.0 - 2015-04-20
-* Initial release
\ No newline at end of file
+* Initial release
diff --git a/INSTALL b/INSTALL
index 0d27199097..a579300ce8 100644
--- a/INSTALL
+++ b/INSTALL
@@ -4,7 +4,7 @@ Installing trytond_account_payment_sepa_cfonb
 Prerequisites
 -------------
 
- * Python 2.7 or later (http://www.python.org/)
+ * Python 3.4 or later (http://www.python.org/)
  * Genshi (http://genshi.edgewall.org/)
  * trytond (http://www.tryton.org/)
  * trytond_party (http://www.tryton.org/)
diff --git a/payment.py b/payment.py
index cf277ddd2c..425dd0824a 100644
--- a/payment.py
+++ b/payment.py
@@ -12,8 +12,7 @@ from trytond.modules.account_payment_sepa import payment as sepa_payment
 __all__ = ['Journal', 'Group']
 
 
-class Journal:
-    __metaclass__ = PoolMeta
+class Journal(metaclass=PoolMeta):
     __name__ = 'account.payment.journal'
 
     @classmethod
@@ -38,8 +37,7 @@ loader = genshi.template.TemplateLoader([
         ], auto_reload=True)
 
 
-class Group:
-    __metaclass__ = PoolMeta
+class Group(metaclass=PoolMeta):
     __name__ = 'account.payment.group'
 
     def get_sepa_template(self):
diff --git a/setup.py b/setup.py
index 5e731efa97..0626f6fbbd 100644
--- a/setup.py
+++ b/setup.py
@@ -1,15 +1,12 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # This file is part of Tryton.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.
 
-from setuptools import setup
-import re
-import os
 import io
-try:
-    from configparser import ConfigParser
-except ImportError:
-    from ConfigParser import ConfigParser
+import os
+import re
+from configparser import ConfigParser
+from setuptools import setup
 
 
 def read(fname):
@@ -27,6 +24,7 @@ def get_require_version(name):
         major_version, minor_version + 1)
     return require
 
+
 config = ConfigParser()
 config.readfp(open('tryton.cfg'))
 info = dict(config.items('tryton'))
@@ -53,7 +51,7 @@ for dep in info.get('depends', []):
         requires.append(get_require_version('trytond_%s' % dep))
 requires.append(get_require_version('trytond'))
 
-tests_require = ['mock']
+tests_require = []
 dependency_links = []
 if minor_version % 2:
     dependency_links.append('https://trydevpi.tryton.org/')
@@ -102,7 +100,6 @@ setup(name=name,
         'Natural Language :: Slovenian',
         'Natural Language :: Spanish',
         'Operating System :: OS Independent',
-        'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
@@ -112,6 +109,7 @@ setup(name=name,
         'Topic :: Office/Business :: Financial :: Accounting',
         ],
     license='GPL-3',
+    python_requires='>=3.4',
     install_requires=requires,
     dependency_links=dependency_links,
     zip_safe=False,
@@ -122,5 +120,4 @@ setup(name=name,
     test_suite='tests',
     test_loader='trytond.test_loader:Loader',
     tests_require=tests_require,
-    use_2to3=True,
     )
diff --git a/tox.ini b/tox.ini
index 2082ab4f4d..adbcbf8431 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,11 +1,11 @@
 [tox]
-envlist = {py27,py34,py35,py36}-{sqlite,postgresql},pypy-{sqlite,postgresql}
+envlist = {py34,py35,py36}-{sqlite,postgresql},pypy3-{sqlite,postgresql}
 
 [testenv]
 commands = {envpython} setup.py test
 deps =
-    {py27,py34,py35,py36}-postgresql: psycopg2 >= 2.5
-    pypy-postgresql: psycopg2cffi >= 2.5
+    {py34,py35,py36}-postgresql: psycopg2 >= 2.5
+    pypy3-postgresql: psycopg2cffi >= 2.5
     sqlite: sqlitebck
 setenv =
     sqlite: TRYTOND_DATABASE_URI={env:SQLITE_URI:sqlite://}