diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 844f525..0e65c5b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -58,14 +58,18 @@ jobs:
         python-version: ["3.8", "3.9", "3.10", "3.11"]
         django-version: ["3.2", "4.1", "4.2"]
         db-engine: [sqlite, postgres]
+        use-pytz: [True, False]
         exclude:
           - django-version: "3.2"
             python-version: "3.11"
+          - django-version: "3.2"
+            use-pytz: False
 
     env:
       PYTHON_VERSION: ${{ matrix.python-version }}
       DJANGO_VERSION: ${{ matrix.django-version }}
       DB_ENGINE: ${{ matrix.db-engine }}
+      USE_PYTZ: ${{ matrix.use-pytz }}
 
     services:
       postgres:
diff --git a/tests/conftest.py b/tests/conftest.py
index af500a2..e75079e 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,3 +1,5 @@
+import os
+
 import pytest
 import pytz
 from django import forms
@@ -93,7 +95,7 @@ class Meta:
         fields = "__all__"
 
 
-@pytest.fixture(params=[True, False])
+@pytest.fixture(params=[bool(os.environ["USE_PYTZ"])] if "USE_PYTZ" in os.environ else [True, False])
 def use_pytz(request):
     yield request.param