diff --git a/wagtail/test/settings_ui.py b/wagtail/test/settings_ui.py
index 17d55e127f..269cddf5e4 100644
--- a/wagtail/test/settings_ui.py
+++ b/wagtail/test/settings_ui.py
@@ -3,16 +3,16 @@ from .settings import *  # noqa: F403
 # Settings meant to run the test suite with Django’s development server, for integration tests.
 DEBUG = True
 
-DATABASES["default"]["NAME"] = "ui_tests.db"  # noqa
+DATABASES["default"]["NAME"] = "ui_tests.db"  # noqa: F405
 
-INSTALLED_APPS += [  # noqa
+INSTALLED_APPS += [  # noqa: F405
     "pattern_library",
 ]
 
 # Allow loopback address to access the server without DNS resolution (lack of Happy Eyeballs in Node 18).
-ALLOWED_HOSTS += ["127.0.0.1"]  # noqa
+ALLOWED_HOSTS += ["127.0.0.1"]  # noqa: F405
 
-TEMPLATES[0]["OPTIONS"]["builtins"] = ["pattern_library.loader_tags"]  # noqa
+TEMPLATES[0]["OPTIONS"]["builtins"] = ["pattern_library.loader_tags"]  # noqa: F405
 
 PATTERN_LIBRARY = {
     # Groups of templates for the pattern library navigation. The keys
diff --git a/wagtail/tests/tests.py b/wagtail/tests/tests.py
index d3ea8895fe..6aef2e85a3 100644
--- a/wagtail/tests/tests.py
+++ b/wagtail/tests/tests.py
@@ -287,7 +287,7 @@ class TestSiteRootPathsCache(TestCase):
         homepage = Page.objects.get(url_path="/home/")
 
         # Warm up the cache by getting the url
-        _ = homepage.url  # noqa
+        _ = homepage.url
 
         # Check that the cache has been set correctly
         self.assertEqual(
@@ -340,7 +340,7 @@ class TestSiteRootPathsCache(TestCase):
         homepage = Page.objects.get(url_path="/home/")
 
         # Warm up the cache by getting the url
-        _ = homepage.url  # noqa
+        _ = homepage.url
 
         # Check that the cache has been set
         self.assertEqual(
@@ -369,7 +369,7 @@ class TestSiteRootPathsCache(TestCase):
         homepage = Page.objects.get(url_path="/home/")
 
         # Warm up the cache by getting the url
-        _ = homepage.url  # noqa
+        _ = homepage.url
 
         # Check that the cache has been set
         self.assertEqual(
@@ -419,7 +419,7 @@ class TestSiteRootPathsCache(TestCase):
         default_site.save()
 
         # Warm up the cache by getting the url
-        _ = homepage.url  # noqa
+        _ = homepage.url
 
         # Move new homepage to root
         new_homepage.move(root_page, pos="last-child")
@@ -447,7 +447,7 @@ class TestSiteRootPathsCache(TestCase):
         homepage = Page.objects.get(url_path="/home/")
 
         # Warm up the cache by getting the url
-        _ = homepage.url  # noqa
+        _ = homepage.url
 
         # Change homepage title and slug
         homepage.title = "New home"
@@ -466,7 +466,7 @@ class TestSiteRootPathsCache(TestCase):
         homepage = Page.objects.get(url_path="/home/")
 
         # Warm up the cache by getting the url
-        _ = homepage.url  # noqa
+        _ = homepage.url
 
         # Translate the homepage
         translated_homepage = homepage.copy_for_translation(
diff --git a/wagtail/utils/setup.py b/wagtail/utils/setup.py
index 64a243fc0d..9c14895ce6 100644
--- a/wagtail/utils/setup.py
+++ b/wagtail/utils/setup.py
@@ -81,7 +81,7 @@ class check_bdist_egg(bdist_egg):
         if not os.path.isdir(self.sentinel_dir):
             print(  # noqa: T201
                 "\n".join(
-                    [  # noqa
+                    [
                         "************************************************************",
                         "The front end assets for Wagtail are missing.",
                         "To generate the assets, please refer to the documentation in",