diff --git a/setup.py b/setup.py
index 60a6776..cec1986 100755
--- a/setup.py
+++ b/setup.py
@@ -240,6 +240,7 @@ def get_greenlet_version():
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',
+        'Programming Language :: Python :: 3.12',
         'Operating System :: OS Independent',
         'Topic :: Software Development :: Libraries :: Python Modules'
     ],