diff --git a/setup.py b/setup.py
index 9d4d8e74..86ffd5a7 100644
--- a/setup.py
+++ b/setup.py
@@ -55,6 +55,7 @@ setup(
         'Natural Language :: English',
         'Programming Language :: Python',
         'Programming Language :: Python :: 2.7',
+        'Programming Language :: Python :: 3.3',
         'Operating System :: OS Independent',
         'Intended Audience :: Science/Research',
         'Topic :: Office/Business :: Financial',