diff --git a/.dart_tool/package_config.json b/.dart_tool/package_config.json
index cd91ef7..65fe58e 100644
--- a/.dart_tool/package_config.json
+++ b/.dart_tool/package_config.json
@@ -332,7 +332,7 @@
       "languageVersion": "2.0"
     }
   ],
-  "generated": "2020-01-03T07:03:17.333610Z",
+  "generated": "2020-01-08T02:13:44.176682Z",
   "generator": "pub",
   "generatorVersion": "2.7.0"
 }
diff --git a/.packages b/.packages
index d64f18e..c4b3542 100644
--- a/.packages
+++ b/.packages
@@ -1,4 +1,4 @@
-# Generated by pub on 2020-01-03 15:03:17.309070.
+# Generated by pub on 2020-01-08 10:13:44.149541.
 analyzer:file:///Applications/flutter/.pub-cache/hosted/pub.flutter-io.cn/analyzer-0.37.0/lib/
 args:file:///Applications/flutter/.pub-cache/hosted/pub.flutter-io.cn/args-1.5.2/lib/
 async:file:///Applications/flutter/.pub-cache/hosted/pub.flutter-io.cn/async-2.3.0/lib/
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1233125..6a76629 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## 0.5.2
++ 内部安全策略优化
++ 同步 JPush SDK 版本
 ## 0.5.1
 + 修改 minSdkVersion 最小支持 17
 ## 0.5.0
diff --git a/README.md b/README.md
index a59a46a..61489f0 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ dependencies:
       
 // pub 集成
 dependencies:
-  jpush_flutter: 0.5.1
+  jpush_flutter: 0.5.2
 ```
 
 ### 配置
diff --git a/android/build.gradle b/android/build.gradle
index 7d3db57..a764894 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -35,7 +35,7 @@ android {
 
 dependencies {
     implementation 'cn.jiguang.sdk:jpush:3.5.4'
-    implementation 'cn.jiguang.sdk:jcore:2.2.4'
+    implementation 'cn.jiguang.sdk:jcore:2.2.6'
 //    implementation 'com.android.support:appcompat-v7:28.+'
     compileOnly files('libs/flutter.jar')
 
diff --git a/example/pubspec.lock b/example/pubspec.lock
index 87e0f93..0b95af0 100644
--- a/example/pubspec.lock
+++ b/example/pubspec.lock
@@ -157,7 +157,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "0.5.1"
+    version: "0.5.2"
   js:
     dependency: transitive
     description:
diff --git a/pubspec.yaml b/pubspec.yaml
index 4e22195..1c0473c 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: jpush_flutter
 description: JIGUANG officially supported JPush Flutter plugin (Android & iOS). 极光推送官方支持的 Flutter 插件（Android & iOS）(https://www.jiguang.cn)。
-version: 0.5.1
+version: 0.5.2
 author: xudong.rao <xudong.rao@outlook.com>
 homepage: https://www.jiguang.cn