diff --git a/setup.py b/setup.py
index b6475a7..a81a39c 100644
--- a/setup.py
+++ b/setup.py
@@ -63,7 +63,11 @@ classifiers=[
     "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",
+    "Programming Language :: Python :: 3.6",
     "Topic :: Security",
     "Topic :: Software Development :: Libraries :: Python Modules",
 ]