diff --git a/hooks/useDownloadBlob/index.d.ts b/hooks/useDownloadBlob/index.d.ts
index 056ef8d..41e1259 100644
--- a/hooks/useDownloadBlob/index.d.ts
+++ b/hooks/useDownloadBlob/index.d.ts
@@ -7,7 +7,7 @@ interface UseDownloadBlobOptions {
   params?: Record<string, any>;
 }
 
-export type DownloadBlobFunction = (url: string, options: UseDownloadBlobOptions) => Promise<any>;
+export type DownloadBlobFunction = (url: string, options?: UseDownloadBlobOptions) => Promise<any>;
 
 /**
  * 下载Blob流文件