diff --git a/setup.cfg b/setup.cfg
index 5662cf1bc..3ab4d5e23 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -18,6 +18,8 @@ classifier =
     Programming Language :: Python :: Implementation :: CPython
     Programming Language :: Python :: 3 :: Only
     Programming Language :: Python :: 3
+    Programming Language :: Python :: 3.6
+    Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9