diff --git a/CHANGES.rst b/CHANGES.rst
index 16d0bc3..24bc3ba 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,6 +1,14 @@
 Changelog
 =========
 
+2.3.3
+-----
+
+Release date: -
+
+- Support Python 3.12
+
+
 2.3.1
 -----
 
diff --git a/setup.py b/setup.py
index e89c7ec..9c99709 100644
--- a/setup.py
+++ b/setup.py
@@ -54,6 +54,7 @@
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',
+        'Programming Language :: Python :: 3.12',
         'Framework :: Flask',
         'Topic :: Internet :: WWW/HTTP :: Dynamic Content',
         'Topic :: Software Development :: Libraries :: Python Modules'
diff --git a/tox.ini b/tox.ini
index 32d32dc..cbcd3ed 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py38, py39, py310, py311, flake8, docs
+envlist = py38, py39, py310, py311, py312, flake8, docs
 skip_missing_interpreters = true
 
 [gh-actions]
@@ -8,6 +8,7 @@ python =
     3.9: py39
     3.10: py310
     3.11: py311
+    3.12: py312
 
 [testenv]
 deps =