diff --git a/docs/advanced_topics/add_to_django_project.md b/docs/advanced_topics/add_to_django_project.md
index 9ee83365ff7b..d220137a5b71 100644
--- a/docs/advanced_topics/add_to_django_project.md
+++ b/docs/advanced_topics/add_to_django_project.md
@@ -343,7 +343,7 @@ WAGTAIL_SITE_NAME = 'My Project'
 # This can be omitted to allow all files, but note that this may present a security risk
 # if untrusted users are allowed to upload files -
 # see https://docs.wagtail.org/en/stable/advanced_topics/deploying.html#user-uploaded-files
-WAGTAILDOCS_EXTENSIONS = ['7z', 'bz2', 'csv', 'docx', 'gz', 'key', 'odt', 'pdf', 'pptx', 'rar', 'rtf', 'tar', 'txt', 'xlsx', 'zip']
+WAGTAILDOCS_EXTENSIONS = ['csv', 'docx', 'key', 'odt', 'pdf', 'pptx', 'rtf', 'txt', 'xlsx', 'zip']
 
 # Reverse the default case-sensitive handling of tags
 TAGGIT_CASE_INSENSITIVE = True
diff --git a/docs/getting_started/integrating_into_django.md b/docs/getting_started/integrating_into_django.md
index dcfbd244ebb4..d3f2b365fef7 100644
--- a/docs/getting_started/integrating_into_django.md
+++ b/docs/getting_started/integrating_into_django.md
@@ -67,7 +67,7 @@ If this setting is not present, Wagtail will fall back to `request.site.root_url
 Add a `WAGTAILDOCS_EXTENSIONS` setting to specify the file types that Wagtail will allow to be uploaded as documents. This can be omitted to allow all file types, but this may present a security risk if untrusted users are allowed to upload documents - see [](user_uploaded_files).
 
 ```python
-WAGTAILDOCS_EXTENSIONS = ['7z', 'bz2', 'csv', 'docx', 'gz', 'key', 'odt', 'pdf', 'pptx', 'rar', 'rtf', 'tar', 'txt', 'xlsx', 'zip']
+WAGTAILDOCS_EXTENSIONS = ['csv', 'docx', 'key', 'odt', 'pdf', 'pptx', 'rtf', 'txt', 'xlsx', 'zip']
 ```
 
 Various other settings are available to configure Wagtail's behaviour - see [Settings](/reference/settings).
diff --git a/wagtail/project_template/project_name/settings/base.py b/wagtail/project_template/project_name/settings/base.py
index 14c940634594..05bd7d02a822 100644
--- a/wagtail/project_template/project_name/settings/base.py
+++ b/wagtail/project_template/project_name/settings/base.py
@@ -177,4 +177,4 @@
 # This can be omitted to allow all files, but note that this may present a security risk
 # if untrusted users are allowed to upload files -
 # see https://docs.wagtail.org/en/stable/advanced_topics/deploying.html#user-uploaded-files
-WAGTAILDOCS_EXTENSIONS = ['7z', 'bz2', 'csv', 'docx', 'gz', 'key', 'odt', 'pdf', 'pptx', 'rar', 'rtf', 'tar', 'txt', 'xlsx', 'zip']
+WAGTAILDOCS_EXTENSIONS = ['csv', 'docx', 'key', 'odt', 'pdf', 'pptx', 'rtf', 'txt', 'xlsx', 'zip']