diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 06cc825..24ba6cc 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -21,7 +21,7 @@ jobs:
       fail-fast: false
       matrix:
         python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
-        django-version: ['3.2', '4.0', '4.1', '4.2', 'main']
+        django-version: ['3.2', '4.1', '4.2', 'main']
     steps:
     - uses: actions/checkout@v4
 
diff --git a/README.md b/README.md
index c48448a..7521756 100644
--- a/README.md
+++ b/README.md
@@ -2,9 +2,9 @@
 
 [![PyPI](https://img.shields.io/pypi/v/django-email-relay)](https://pypi.org/project/django-email-relay/)
 ![PyPI - Python Version](https://img.shields.io/pypi/pyversions/django-email-relay)
-![Django Version](https://img.shields.io/badge/django-3.2%20%7C%204.0%20%7C%204.1%20%7C%204.2-%2344B78B?labelColor=%23092E20)
+![Django Version](https://img.shields.io/badge/django-3.2%20%7C%204.1%20%7C%204.2-%2344B78B?labelColor=%23092E20)
 <!-- https://shields.io/badges -->
-<!-- django-3.2 | 4.0 | 4.1 | 4.2-#44B78B-->
+<!-- django-3.2 | 4.1 | 4.2-#44B78B -->
 <!-- labelColor=%23092E20 -->
 
 `django-email-relay` enables Django projects without direct access to a preferred SMTP server to use that server for email dispatch.
@@ -20,7 +20,7 @@ Why opt for this setup?
 ## Requirements
 
 - Python 3.8, 3.9, 3.10, 3.11, or 3.12
-- Django 3.2, 4.0, 4.1, or 4.2
+- Django 3.2, 4.1, or 4.2
 - PostgreSQL (for provided Docker image)
 
 ## Installation
diff --git a/noxfile.py b/noxfile.py
index 35f752e..862815e 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -11,12 +11,11 @@
 PY_DEFAULT = PY38
 
 DJ32 = "3.2"
-DJ40 = "4.0"
 DJ41 = "4.1"
 DJ42 = "4.2"
 DJMAIN = "main"
 DJMAIN_MIN_PY = PY310
-DJ_VERSIONS = [DJ32, DJ40, DJ41, DJ42, DJMAIN]
+DJ_VERSIONS = [DJ32, DJ41, DJ42, DJMAIN]
 DJ_DEFAULT = DJ32