diff --git a/src/lib/db/transaction.ts b/src/lib/db/transaction.ts
index 0fa5905ac7..96e9546c00 100644
--- a/src/lib/db/transaction.ts
+++ b/src/lib/db/transaction.ts
@@ -93,10 +93,11 @@ export function withRollback<S>(
     const service = serviceFactory(db) as WithRollback<S>;
 
     service.rollback = async <R>(fn: (service: S) => R) => {
-        const trx = await db.transaction({ isolationLevel: 'serializable' });
+        const trx = await db.transaction();
         try {
             const transactionService = serviceFactory(trx);
-            return fn(transactionService);
+            const result = await fn(transactionService);
+            return result;
         } finally {
             await trx.rollback();
         }