diff --git a/setup.cfg b/setup.cfg
index 967e2a8ef..baad37824 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -30,7 +30,9 @@ classifier =
     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 :: 3.4
     Programming Language :: Python :: 3.5