diff --git a/ietf/mailtrigger/migrations/0022_add_doc_external_resource_change_requested.py b/ietf/mailtrigger/migrations/0022_add_doc_external_resource_change_requested.py
new file mode 100644
index 000000000..92ace7a8d
--- /dev/null
+++ b/ietf/mailtrigger/migrations/0022_add_doc_external_resource_change_requested.py
@@ -0,0 +1,37 @@
+# Generated by Django 2.2.20 on 2021-05-13 07:20
+
+from django.db import migrations
+
+
+def forward(apps, schema_editor):
+    """Add new MailTrigger and Recipients"""
+    MailTrigger = apps.get_model('mailtrigger', 'MailTrigger')
+    Recipient = apps.get_model('mailtrigger', 'Recipient')
+
+    mt, created = MailTrigger.objects.get_or_create(slug='doc_external_resource_change_requested')
+    if created:
+        mt.desc='Recipients when a change to the external resources for a document is requested.'
+        mt.save()
+        for recipient_slug in [
+            "doc_ad",
+            "doc_group_chairs",
+            "doc_group_delegates",
+            "doc_shepherd",
+            "doc_stream_manager"
+        ]:
+            mt.to.add(Recipient.objects.get(slug=recipient_slug))
+
+
+def reverse(apps, schema_editor):
+    pass
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('mailtrigger', '0021_email_remind_action_holders'),
+    ]
+
+    operations = [
+        migrations.RunPython(forward, reverse)
+    ]