diff --git a/setup.py b/setup.py
--- a/setup.py
+++ b/setup.py
@@ -34,18 +34,18 @@ setup(name='Ennstatus',
                                   'templates/stats/*.html'
                                   ]},
       install_requires=_get_requirements(),
-      classifiers=["Development Status :: 5 - Production/Stable",
-                   "Environment :: Web Environment",
-                   "Operating System :: POSIX",
-                   "Programming Language :: Python",
-                   "Programming Language :: Python :: 2",
-                   "Programming Language :: Python :: 2.7",
-                   "Topic :: Internet",
-                   "Topic :: Internet :: WWW/HTTP",
-                   "Topic :: Internet :: WWW/HTTP :: Dynamic Content",
-                   "Topic :: Internet :: WWW/HTTP :: WSGI",
-                   "Topic :: Internet :: WWW/HTTP :: WSGI :: Application",
-                   ("License :: OSI Approved :: "
-                    "GNU General Public License v3 or later (GPLv3+)"),
+      classifiers=['Development Status :: 5 - Production/Stable',
+                   'Environment :: Web Environment',
+                   'Operating System :: POSIX',
+                   'Programming Language :: Python',
+                   'Programming Language :: Python :: 3',
+                   'Programming Language :: Python :: 3.3',
+                   'Topic :: Internet',
+                   'Topic :: Internet :: WWW/HTTP',
+                   'Topic :: Internet :: WWW/HTTP :: Dynamic Content',
+                   'Topic :: Internet :: WWW/HTTP :: WSGI',
+                   'Topic :: Internet :: WWW/HTTP :: WSGI :: Application',
+                   ('License :: OSI Approved :: '
+                    'GNU General Public License v3 or later (GPLv3+)'),
                    ]
       )