diff --git a/backend/src/db/schemas/pki-acme-orders.ts b/backend/src/db/schemas/pki-acme-orders.ts
index 5ed58e4e9..6d5274f06 100644
--- a/backend/src/db/schemas/pki-acme-orders.ts
+++ b/backend/src/db/schemas/pki-acme-orders.ts
@@ -15,7 +15,7 @@ export const PkiAcmeOrdersSchema = z.object({
   updatedAt: z.date(),
   notBefore: z.date().nullable().optional(),
   notAfter: z.date().nullable().optional(),
-  expiresAt: z.date().nullable().optional()
+  expiresAt: z.date()
 });
 
 export type TPkiAcmeOrders = z.infer<typeof PkiAcmeOrdersSchema>;