diff --git a/setup.py b/setup.py
index 525cacd..f341cce 100644
--- a/setup.py
+++ b/setup.py
@@ -55,6 +55,7 @@ setup(
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
         "Topic :: Utilities",
         "Topic :: Software Development",
         "Topic :: Software Development :: Documentation",