diff --git a/setup.cfg b/setup.cfg
index 0b296e5..9213096 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -16,6 +16,8 @@ classifier =
     Programming Language :: Python
     Programming Language :: Python :: 2
     Programming Language :: Python :: 2.7
+    Programming Language :: Python :: 3
+    Programming Language :: Python :: 3.4
     Topic :: Internet :: Name Service (DNS)
 
 [global]