diff --git a/setup.cfg b/setup.cfg
index 1c9a1f3af..f952e3c78 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -20,6 +20,7 @@ classifier =
    Programming Language :: Python :: 3.6
    Programming Language :: Python :: 3.7
    Programming Language :: Python :: 3.8
+   Programming Language :: Python :: 3.9
 
 [files]
 packages =