diff --git a/setup.py b/setup.py
index 6b314ca..395728a 100644
--- a/setup.py
+++ b/setup.py
@@ -34,6 +34,13 @@
         "License :: OSI Approved :: Apache Software License",
         "Operating System :: OS Independent",
         "Programming Language :: Python",
+        "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",
+        "Programming Language :: Python :: Implementation :: CPython",
     ],
     zip_safe=False,
     packages=find_packages(),