diff --git a/setup.py b/setup.py
index 37b0343..7caa25f 100644
--- a/setup.py
+++ b/setup.py
@@ -237,8 +237,12 @@ installed.
         'Topic :: System :: Archiving',
         'Development Status :: 5 - Production/Stable',
         'License :: OSI Approved :: GNU General Public License (GPL)',
+        'Programming Language :: Python :: 2',
         'Programming Language :: Python :: 2.7',
+        'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3.3',
+        'Programming Language :: Python :: 3.4',
+        'Programming Language :: Python :: 3.5',
         'Operating System :: OS Independent',
     ],
     distclass = MyDistribution,