diff --git a/setup.cfg b/setup.cfg
index 55ebab232a..efe47d29a3 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -16,6 +16,9 @@ classifier =
     Programming Language :: Python
     Programming Language :: Python :: 2
     Programming Language :: Python :: 2.7
+    Programming Language :: Python :: 3
+    Programming Language :: Python :: 3.6
+    Programming Language :: Python :: 3.7
 
 [pbr]
 skip_authors = True