diff --git a/.github/workflows/tox.yml b/.github/workflows/tox.yml
index 6a34cb6..bbfe2f9 100644
--- a/.github/workflows/tox.yml
+++ b/.github/workflows/tox.yml
@@ -19,7 +19,9 @@ jobs:
           - version: "3.10"
             toxenv: py310
           - version: "3.11"
-            toxenv: py311,docs,check-style
+            toxenv: py311
+          - version: "3.12"
+            toxenv: py312,docs,check-style
 
     steps:
       - uses: actions/checkout@v3
diff --git a/setup.py b/setup.py
index 3014ac3..366d5fa 100644
--- a/setup.py
+++ b/setup.py
@@ -42,6 +42,7 @@
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: 3.12",
         "Topic :: Internet :: WWW/HTTP",
     ],
 )
diff --git a/tox.ini b/tox.ini
index e57f80b..0692fd3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py38,py39,py310,py311
+envlist = py38,py39,py310,py311,py312
 
 [testenv]
 description = Run tests
@@ -9,7 +9,7 @@ commands =
 
 [testenv:fix-style]
 description = Fix coding style
-basepython = python3.11
+basepython = python3.12
 skip_install = true
 deps =
   black
@@ -26,7 +26,7 @@ commands =
 
 [testenv:check-style]
 description = Check coding style
-basepython = python3.11
+basepython = python3.12
 skip_install = true
 deps =
   black