diff --git a/setup.cfg b/setup.cfg
index 0e5de85..72cf296 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -17,6 +17,7 @@ classifiers =
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
+    Programming Language :: Python :: 3.9
     Intended Audience :: Developers
     License :: OSI Approved :: MIT License
     Natural Language :: English