diff --git a/setup.py b/setup.py
index 353b6c09693..3aa7504b05c 100755
--- a/setup.py
+++ b/setup.py
@@ -66,7 +66,7 @@
 VERSION = '{}.{}.{}'.format(MAJOR, MINOR, MICRO)
 
 # The first version not in the `Programming Language :: Python :: ...` classifiers above
-if sys.version_info >= (3, 11):
+if sys.version_info >= (3, 12):
     fmt = "NumPy {} may not yet support Python {}.{}."
     warnings.warn(
         fmt.format(VERSION, *sys.version_info[:2]),
@@ -112,6 +112,7 @@
 Programming Language :: Python :: 3.8
 Programming Language :: Python :: 3.9
 Programming Language :: Python :: 3.10
+Programming Language :: Python :: 3.11
 Programming Language :: Python :: 3 :: Only
 Programming Language :: Python :: Implementation :: CPython
 Topic :: Software Development