diff --git a/setup.py b/setup.py
index faa7afea..4aa9d1f3 100755
--- a/setup.py
+++ b/setup.py
@@ -77,6 +77,7 @@
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.8',
+        'Programming Language :: Python :: 3.9',
         'Operating System :: MacOS :: MacOS X',
         'Operating System :: Microsoft :: Windows',
         'Operating System :: POSIX',