diff --git a/migrations/1729121498808_add-null-not-distinct-to-email-domains.cjs b/migrations/1729121498808_add-null-not-distinct-to-email-domains.cjs
new file mode 100644
index 00000000..6ea6f527
--- /dev/null
+++ b/migrations/1729121498808_add-null-not-distinct-to-email-domains.cjs
@@ -0,0 +1,40 @@
+exports.shorthands = undefined;
+
+exports.up = async (pgm) => {
+  await pgm.db.query(`
+    WITH cte AS (
+      SELECT id,
+             ROW_NUMBER()
+             OVER (PARTITION BY organization_id, domain, verification_type ORDER BY updated_at DESC) AS rn
+      FROM email_domains
+      )
+    DELETE
+    FROM email_domains
+    WHERE id IN (
+      SELECT id
+      FROM cte
+      WHERE rn > 1
+      );
+  `);
+  await pgm.db.query(`
+    ALTER TABLE email_domains
+      DROP CONSTRAINT unique_organization_domain;
+  `);
+  await pgm.db.query(`
+    ALTER TABLE email_domains
+      ADD CONSTRAINT unique_organization_domain
+        UNIQUE NULLS NOT DISTINCT (organization_id, domain, verification_type);
+  `);
+};
+
+exports.down = async (pgm) => {
+  await pgm.db.query(`
+    ALTER TABLE email_domains
+      DROP CONSTRAINT unique_organization_domain;
+  `);
+  await pgm.db.query(`
+    ALTER TABLE email_domains
+      ADD CONSTRAINT unique_organization_domain
+        UNIQUE (organization_id, domain, verification_type);
+  `);
+};