diff --git a/CHANGELOG b/CHANGELOG
index 39bc018d..c213f917 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,7 +1,8 @@
-0.5.2
---------------------------------------------------------
+0.5.2   (2019-01-30)
+--------------------
 - BUG修复模块
   * 修正低版本跨域代理文件发送请求时先序列化对象
+  * 修正 util/cache/list 模块隐式声明导致的全局变量污染
 
 0.5.1   (2018-10-11)
 --------------------------------------------------------
diff --git a/bower.json b/bower.json
index 23f92283..36780165 100644
--- a/bower.json
+++ b/bower.json
@@ -1,6 +1,6 @@
 {
     "name": "nej",
-    "version": "0.5.1",
+    "version": "0.5.2",
     "homepage": "https://github.com/genify/nej",
     "authors": [
         "genify <caijf@corp.netease.com>"
diff --git a/package.json b/package.json
index bbc30c13..94497a33 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
     "name": "nej-framework",
     "description": "JavaScript Cross-Platform Framework",
-    "version": "0.5.1",
+    "version": "0.5.2",
     "license": "MIT",
     "keywords": [
         "nej",
diff --git a/src/util/cache/list.js b/src/util/cache/list.js
index ba773ed1..b16822a1 100644
--- a/src/util/cache/list.js
+++ b/src/util/cache/list.js
@@ -862,7 +862,7 @@ NEJ.define([
                 data:_options.data||{},
                 key:(''+_options.key)||''
             };
-        _item = this._$getItemInCache(_id);
+        var _item = this._$getItemInCache(_id);
         _ropt.data[this.__key] = _id;
         // hit in memory
         if (!!_item&&