diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 68b0ae9..d6a93f2 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -17,6 +17,8 @@ jobs:
         include:
         - python-version: '3.9'
           django-version: '<5'
+        - python-version: '3.13'
+          django-version: ''
     steps:
     - uses: actions/checkout@v4
     - uses: actions/setup-python@v5
diff --git a/pyproject.toml b/pyproject.toml
index 8e595af..87f9054 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,6 +21,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Topic :: Database :: Database Engines/Servers",
     "Topic :: Software Development :: Libraries :: Python Modules",
     "Typing :: Typed",
diff --git a/tests/test_all.py b/tests/test_all.py
index 4acc0d3..c6617fa 100644
--- a/tests/test_all.py
+++ b/tests/test_all.py
@@ -1,6 +1,5 @@
 import enum
 import math
-import django
 from django.db import models
 from django.db.models import functions
 from django.utils import timezone
@@ -271,7 +270,6 @@ def test_3_2(books):
     assert books.alias(name=F.author.lower()).annotate(name=F('name'))
 
 
-@pytest.mark.skipif(django.VERSION < (4,), reason='requires django >=4')
 def test_4(books):
     assert books['quantity'].filter(quantity=-1).sum(default=0) == 0