diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7461fc19..c4f1b9e8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 ## CHANGE LOG
 
+## v7.7.7
+- 修复form上传在升级mime库后的错误
+
 ## v7.1.6
 - 修复rs和rsf的https默认域名
 - 升级修复mime库的安全风险
diff --git a/package.json b/package.json
index b367b2a2..521217a6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "qiniu",
-  "version": "7.1.6",
+  "version": "7.1.7",
   "description": "Node wrapper for Qiniu Resource (Cloud) Storage API",
   "main": "index.js",
   "directories": {
diff --git a/qiniu/storage/form.js b/qiniu/storage/form.js
index e0b6bf2b..7ac513b4 100644
--- a/qiniu/storage/form.js
+++ b/qiniu/storage/form.js
@@ -173,7 +173,7 @@ FormUploader.prototype.putFile = function(uploadToken, key, localFile, putExtra,
   var fsStream = fs.createReadStream(localFile);
 
   if (!putExtra.mimeType) {
-    putExtra.mimeType = mime.lookup(localFile);
+    putExtra.mimeType = mime.getType(localFile);
   }
 
   if (!putExtra.fname) {