diff --git a/src/modules/cron/bankstatementsync.service.ts b/src/modules/cron/bankstatementsync.service.ts
index 9773631..66863b0 100644
--- a/src/modules/cron/bankstatementsync.service.ts
+++ b/src/modules/cron/bankstatementsync.service.ts
@@ -221,11 +221,17 @@ export function bankStatementService(server: FastifyInstance) {
                     ...new Set(allNewTransactions.map((t) => t.account)),
                 ]
 
+                const normalizeDate = (val: any) => {
+                    if (!val) return null
+                    const d = new Date(val)
+                    return isNaN(d.getTime()) ? null : d
+                }
+
                 for (const accId of affectedAccounts) {
                     await server.db
                         .update(bankaccounts)
                         //@ts-ignore
-                        .set({syncedAt: dayjs().utc().toISOString()})
+                        .set({syncedAt: normalizeDate(dayjs())})
                         .where(eq(bankaccounts.id, accId))
                 }
             }