diff --git a/index.js b/index.js
index 1a23c3d..9232a59 100644
--- a/index.js
+++ b/index.js
@@ -123,7 +123,7 @@ export default class Response {
   }
 
   // 文件下载
-  sendfile(target, filename = 'untitled') {
+  sendfile(target, filename = 'untitled', expires = 3600) {
     if (this.#ended) {
       return
     }
@@ -151,7 +151,7 @@ export default class Response {
       }
     }
 
-    this.expires = 3600
+    this.expires = expires
 
     if (Buffer.isBuffer(target)) {
       data = target
@@ -184,14 +184,14 @@ export default class Response {
     this.body = data
   }
 
-  load(file, type) {
+  load(file, type, expires = 24 * 3600) {
     let stat = fs.stat(file)
     if (stat.isFile()) {
       let size = stat.size
 
       let _type = type || file.split('.').pop() || 'stream'
 
-      this.expires = 30 * 24 * 3600
+      this.expires = expires
       this.type = _type
       this.length = stat.size
       return fs.origin.createReadStream(file).pipe(this.#res)
diff --git a/package.json b/package.json
index b5dbdc9..d94996f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@gm5/response",
-  "version": "2.1.0",
+  "version": "2.1.1",
   "type": "module",
   "description": "对Http的response进一步封装, 提供常用的API",
   "main": "index.js",