diff --git a/CHANGES.md b/CHANGES.md
index 86c6f23..e148b70 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,8 @@
 # Changelog
 
+**9.5.0** (2024-02-02)
+  * Downgraded sphinx to 7.1.* for Python 3.8 compatability
+
 **9.4.4** (2024-01-22)
   * Downgraded sphinx to 7.1.* for Python 3.8 compatability
 
diff --git a/ambient_toolbox/__init__.py b/ambient_toolbox/__init__.py
index fa4d210..0c4a14a 100644
--- a/ambient_toolbox/__init__.py
+++ b/ambient_toolbox/__init__.py
@@ -1,3 +1,3 @@
 """Python toolbox of Ambient Digital containing an abundance of useful tools and gadgets."""
 
-__version__ = "9.4.4"
+__version__ = "9.5.0"
diff --git a/ambient_toolbox/tests/mixins.py b/ambient_toolbox/tests/mixins.py
index 17c8ebf..4d5354b 100644
--- a/ambient_toolbox/tests/mixins.py
+++ b/ambient_toolbox/tests/mixins.py
@@ -138,3 +138,13 @@ def assert_partial_message_in_request(self, request: WSGIRequest, message: str)
                 message_found = True
 
         self.assertTrue(message_found, f"Message part {message!r} not found in request.")
+
+    def assert_message_not_in_request(self, request: WSGIRequest, message: str) -> None:
+        messages = list(get_messages(request))
+
+        message_found = False
+        for request_message in messages:
+            if str(request_message) == message:
+                message_found = True
+
+        self.assertFalse(message_found, f"Message {message!r} not found in request.")
diff --git a/tests/tests/mixins/test_django_message_framework.py b/tests/tests/mixins/test_django_message_framework.py
index 410ce29..205a40d 100644
--- a/tests/tests/mixins/test_django_message_framework.py
+++ b/tests/tests/mixins/test_django_message_framework.py
@@ -18,3 +18,7 @@ def test_full_message_found(self):
     def test_partial_message_found(self):
         messages.add_message(self.request, messages.INFO, "My message")
         self.assert_partial_message_in_request(request=self.request, message="My")
+
+    def test_message_not_found(self):
+        messages.add_message(self.request, messages.INFO, "My message")
+        self.assert_message_not_in_request(request=self.request, message="Ninja")