Modify access rules
diff --git a/project.config b/project.config
index 03a11e8..ab4ee47 100644
--- a/project.config
+++ b/project.config
@@ -14,3 +14,5 @@
 [access "refs/groups/*"]
 	exclusiveGroupPermissions = read
 	read = group Registered Users
+[access "refs/meta/external-ids"]
+	push = group Administrators