diff --git a/pyproject.toml b/pyproject.toml
index d7b848502..a23289fb1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -34,6 +34,7 @@ classifiers = [
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
     "Topic :: Internet :: WWW/HTTP :: HTTP Servers",
     "Topic :: Internet :: WWW/HTTP",
 ]