diff --git a/frontend/src/pages/OrderDetail.tsx b/frontend/src/pages/OrderDetail.tsx
index fa1c23e..bc8fb36 100644
--- a/frontend/src/pages/OrderDetail.tsx
+++ b/frontend/src/pages/OrderDetail.tsx
@@ -102,6 +102,8 @@ export default function OrderDetailPage() {
     mutationFn: () => deleteOrder(id!),
     onSuccess: () => {
       toast.success('Order deleted')
+      qc.invalidateQueries({ queryKey: ['orders'] })
+      qc.removeQueries({ queryKey: ['order', id] })
       navigate('/orders')
     },
     onError: (e: any) => toast.error(e.response?.data?.detail || 'Delete failed'),