diff --git a/setup.py b/setup.py
index bd18a83..3e77cc8 100644
--- a/setup.py
+++ b/setup.py
@@ -35,10 +35,14 @@ setup(
     tests_require=["mock"],
     classifiers=[
         "Programming Language :: Python",
+        "Programming Language :: Python :: Implementation :: PyPy",
+        "Programming Language :: Python :: Implementation :: CPython",
         "Programming Language :: Python :: 2.6",
         "Programming Language :: Python :: 2.7",
         "Programming Language :: Python :: 3",
         "Programming Language :: Python :: 3.2",
+        "Programming Language :: Python :: 3.3",
+        "Programming Language :: Python :: 3.4",
         "License :: OSI Approved :: BSD License",
         "Topic :: Software Development :: Libraries :: Python Modules",
         "Framework :: Django",