diff --git a/README.md b/README.md
index a6d5573f..5f301301 100644
--- a/README.md
+++ b/README.md
@@ -50,11 +50,15 @@ Yes, please do contribute. But before this, you should read our [Contributing Gu
 
 ## Changelog
 
-**Nov 27th, 2013** `2.2.9`
+**Aug 5th, 2014** `2.2.10`
+
+- Fix upload doc error.
+
+**Jul 28th, 2013** `2.2.9`
 
 - Fix family error in node 0.11.*
 
-**Nov 27th, 2013** `2.2.8`
+**Jul 3rd, 2013** `2.2.8`
 
 - Add server config for spm install
 
diff --git a/lib/sdk/yuan.js b/lib/sdk/yuan.js
index 8142fa13..ff8b190f 100644
--- a/lib/sdk/yuan.js
+++ b/lib/sdk/yuan.js
@@ -10,7 +10,6 @@ var os = require('os');
 var zlib = require('zlib');
 var crypto = require('crypto');
 var request = require('request');
-var FormData = require('form-data');
 var util = require('util');
 var semver = require('semver');
 var _ = require('lodash');
@@ -348,15 +347,15 @@ Yuan.prototype.upload = function(data, callback) {
     auth: auth
   };
   var self = this;
-  var form = new FormData();
+  var r = this.request(query, callback);
+
+  var form = r.form();
   form.append('name', data.name || '');
   form.append('version', data.version || '');
   form.append('tag', data.tag || 'latest');
   form.append('file', fs.createReadStream(data.tarfile));
   form.getLength(function(err, len) {
     log.info('target', self.server);
-    var r = self.request(query, callback);
-    r._form = form;
     r.setHeader('Content-Length', len);
   });
 };
diff --git a/package.json b/package.json
index a8448453..6a9f6e0b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "spm",
-  "version": "2.2.9",
+  "version": "2.2.10",
   "preferGlobal": "true",
   "description": "Static Package Manager",
   "author": "Hsiaoming Yang <me@lepture.com>",
@@ -25,7 +25,6 @@
     "semver": "~1.1.4",
     "async": "~0.1.22",
     "tar": "~0.1.16",
-    "form-data": "~0.1.0",
     "request": "~2.39.0",
     "colorful": "~2.1.0",
     "commander": "~1.1.1",