diff --git a/mysite/settings/base.py b/mysite/settings/base.py
index e305365..f64c185 100644
--- a/mysite/settings/base.py
+++ b/mysite/settings/base.py
@@ -182,6 +182,11 @@
 }
 
 
+# Django sets a maximum of 1000 fields per form by default, but particularly complex page models
+# can exceed this limit within Wagtail's page editor.
+DATA_UPLOAD_MAX_NUMBER_FIELDS = 10_000
+
+
 # Wagtail settings
 
 WAGTAIL_SITE_NAME = "mysite"