diff --git a/setup.py b/setup.py
index a78f4313f..5a0e72359 100644
--- a/setup.py
+++ b/setup.py
@@ -285,6 +285,7 @@ def members_appended(*ds):
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
+        'Programming Language :: Python :: 3.11',
         'Topic :: Security :: Cryptography',
         'Topic :: System :: Archiving :: Backup',
     ],