diff --git a/setup.cfg b/setup.cfg
index cfca1f4fa9..760f6c4b38 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -15,6 +15,8 @@ classifier =
     Programming Language :: Python
     Programming Language :: Python :: 2
     Programming Language :: Python :: 2.7
+    Programming Language :: Python :: 3
+    Programming Language :: Python :: 3.5
 
 [files]
 data_files =