Python 3.6 (#600)

diff --git a/setup.py b/setup.py
index de510f3..97aa209 100755
--- a/setup.py
+++ b/setup.py
@@ -83,6 +83,7 @@
             'Programming Language :: Python :: 3.3',
             'Programming Language :: Python :: 3.4',
             'Programming Language :: Python :: 3.5',
+            'Programming Language :: Python :: 3.6',
 
             'Programming Language :: Python :: Implementation :: CPython',
             'Programming Language :: Python :: Implementation :: PyPy',