diff --git a/lib/Lib/Driver/Cache/FileCache.js b/lib/Lib/Driver/Cache/FileCache.js
index d5e59f06..f75474ea 100644
--- a/lib/Lib/Driver/Cache/FileCache.js
+++ b/lib/Lib/Driver/Cache/FileCache.js
@@ -41,7 +41,7 @@ module.exports = Cache(function(){
                 if (!exists) {
                     return deferred.resolve();
                 }
-                fs.readFile(filePath, function(error, content){
+                fs.readFile(filePath, {encoding: "utf8"}, function(error, content){
                     if (error || !content) {
                         return deferred.resolve();
                     }
@@ -83,8 +83,11 @@ module.exports = Cache(function(){
                 expire: Date.now() + timeout * 1000,
                 timeout: timeout
             };
-            setFileContent(filePath, JSON.stringify(data));
-            return getPromise();
+            var deferred = getDefer();
+            fs.writeFile(filePath, JSON.stringify(data), function(){
+                deferred.resolve();
+            })
+            return deferred.promise;
         },
         /**
          * 设置缓存
diff --git a/package.json b/package.json
index 4802df10..b7f57b58 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "thinkjs",
   "description": "A MVC Web Framework For Node.js",
-  "version": "0.5.27",
+  "version": "0.5.28",
   "author": {
     "name": "welefen",
     "email": "welefen@gmail.com"