diff --git a/supabase/migrations/20250521182744_modify_custom_domain_relations.sql b/supabase/migrations/20250521182744_modify_custom_domain_relations.sql
new file mode 100644
index 00000000..26dba65e
--- /dev/null
+++ b/supabase/migrations/20250521182744_modify_custom_domain_relations.sql
@@ -0,0 +1,4 @@
+alter table "public"."custom_domains" alter column "identity" drop not null;
+alter table "public"."publication_domains" add column "identity" text not null;
+alter table "public"."publication_domains" add constraint "publication_domains_identity_fkey" FOREIGN KEY (identity) REFERENCES identities(atp_did) ON UPDATE CASCADE ON DELETE CASCADE not valid;
+alter table "public"."publication_domains" validate constraint "publication_domains_identity_fkey";