diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index aab608e..47df87f 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -17,6 +17,8 @@ jobs:
             django-version: "4.0"
           - python-version: "3.10"
             django-version: "4.1"
+          - python-version: "3.11"
+            django-version: "4.2"
           - grappelli: "1"
             name-suffix: " + grappelli"
             python-version: "3.7"
diff --git a/nested_admin/compat.py b/nested_admin/compat.py
index 270b898..da45bdb 100644
--- a/nested_admin/compat.py
+++ b/nested_admin/compat.py
@@ -4,6 +4,7 @@
 See https://github.com/django/django/commit/c19b56f633e172b3c02094cbe12d28865ee57772
 and https://code.djangoproject.com/ticket/28377
 """
+
 from collections import defaultdict, OrderedDict
 import warnings
 
diff --git a/nested_admin/nested.py b/nested_admin/nested.py
index 12429d1..5195b0b 100644
--- a/nested_admin/nested.py
+++ b/nested_admin/nested.py
@@ -193,9 +193,11 @@ def inline_formset_data(self):
                     "lookupAutocomplete": getattr(
                         self.opts, "autocomplete_lookup_fields", {}
                     ),
-                    "formsetFkName": self.formset.fk.name
-                    if getattr(self.formset, "fk", None)
-                    else "",
+                    "formsetFkName": (
+                        self.formset.fk.name
+                        if getattr(self.formset, "fk", None)
+                        else ""
+                    ),
                     "formsetFkModel": formset_fk_model,
                     "nestingLevel": getattr(self.formset, "nesting_depth", 0),
                     "fieldNames": {
@@ -542,7 +544,7 @@ def get_formset(self, request, obj=None, **kwargs):
 
         if self.sortable_field_name:
 
-            class FormSet(BaseFormSet):
+            class FormSet(BaseFormSet):  # noqa: F811
                 sortable_field_name = self.sortable_field_name
 
         kwargs["formset"] = FormSet
diff --git a/nested_admin/polymorphic.py b/nested_admin/polymorphic.py
index 311bc3d..10de5b0 100644
--- a/nested_admin/polymorphic.py
+++ b/nested_admin/polymorphic.py
@@ -152,7 +152,7 @@ def get_formset(self, request, obj=None, **kwargs):
 
             if self.sortable_field_name:
 
-                class FormSet(BaseFormSet):
+                class FormSet(BaseFormSet):  # noqa: F811
                     sortable_field_name = self.sortable_field_name
 
             kwargs["formset"] = FormSet
@@ -190,7 +190,7 @@ def get_formset(self, request, obj=None, **kwargs):
 
             if self.sortable_field_name:
 
-                class FormSet(BaseFormSet):
+                class FormSet(BaseFormSet):  # noqa: F811
                     sortable_field_name = self.sortable_field_name
 
             kwargs["formset"] = FormSet
diff --git a/setup.py b/setup.py
index bf92827..bf2e88e 100755
--- a/setup.py
+++ b/setup.py
@@ -72,10 +72,12 @@
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
         "Framework :: Django",
         "Framework :: Django :: 3.2",
         "Framework :: Django :: 4.0",
         "Framework :: Django :: 4.1",
+        "Framework :: Django :: 4.2",
     ],
     include_package_data=True,
     zip_safe=False,
diff --git a/tox.ini b/tox.ini
index 4fc5547..c185368 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,6 +4,7 @@ envlist =
     py{36,37,38,39,310}-dj32-{grp,nogrp}
     py{38,39,310}-dj40-{grp,nogrp}
     py{38,39,310}-dj41-nogrp
+    py{38,39,310,311}-dj42-nogrp
     black,flake8
 skipsdist=True
 
@@ -79,6 +80,7 @@ python =
     3.8: py38
     3.9: py39
     3.10: py310
+    3.11: py311
 
 [gh-actions:env]
 DJANGO =
@@ -86,6 +88,7 @@ DJANGO =
     3.2: dj32
     4.0: dj40
     4.1: dj41
+    4.2: dj42
 GRAPPELLI =
     0: nogrp
     1: grp