diff --git a/setup.py b/setup.py
index d1a1ec26..2d6220ef 100644
--- a/setup.py
+++ b/setup.py
@@ -17,10 +17,13 @@ setup(
     platforms='linux',
     classifiers=[
         'License :: OSI Approved :: MIT License',
+        'Programming Language :: Python :: 2',
         'Programming Language :: Python :: 2.6',
         'Programming Language :: Python :: 2.7',
+        'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3.3',
         'Programming Language :: Python :: 3.4',
+        'Programming Language :: Python :: Implementation :: CPython',
         'Programming Language :: Python :: Implementation :: PyPy',
     ],