diff --git a/.npmrc b/.npmrc
index 3253b35..24032ed 100644
--- a/.npmrc
+++ b/.npmrc
@@ -1,5 +1,5 @@
 build_from_source=true
 runtime=electron
-target=9.2.1
+target=11.2.1
 toolset=v142
 disturl=https://electronjs.org/headers
diff --git a/.vscode/c_cpp_properties.json b/.vscode/c_cpp_properties.json
index 6c60e01..d0e61ac 100644
--- a/.vscode/c_cpp_properties.json
+++ b/.vscode/c_cpp_properties.json
@@ -4,7 +4,7 @@
             "name": "Win32",
             "includePath": [
                 "${workspaceFolder}/node_modules/node-addon-api",
-                "${env:HOME}/AppData/Local/node-gyp/Cache/9.2.1/include/node"
+                "${env:HOME}/AppData/Local/node-gyp/Cache/11.2.1/include/node"
             ],
             "defines": [
                 "_DEBUG",
diff --git a/README.md b/README.md
index 8a8a877..8c8686c 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ npm test # 编译然后跑测试
 
 ## 加密
 
-先生成密钥保存在本地的文件中，方便 JS 打包脚本导入和 C++ include 内联。
+以 AES-256-CBC 为例，先生成密钥保存在本地的文件中，方便 JS 打包脚本导入和 C++ include 内联。
 
 ``` js
 // 这个脚本不会被打包进客户端，本地开发用
@@ -219,9 +219,9 @@ static Napi::Value _runScript(Napi::Env& env, const char* script) {
 `node-addon-api` v3 以上可以直接使用：
 
 ``` cpp
-Napi::Value Napi::Env::RunScript(const char* utf8script)
-Napi::Value Napi::Env::RunScript(const std::string& utf8script)
-Napi::Value Napi::Env::RunScript(Napi::String script)
+Napi::Value Napi::Env::RunScript(const char* utf8script);
+Napi::Value Napi::Env::RunScript(const std::string& utf8script);
+Napi::Value Napi::Env::RunScript(Napi::String script);
 ```
 
 然后就可以愉快地 JS in C++ 了。
@@ -391,7 +391,7 @@ require('./main.node')
 
 ``` js
 for (let i = 0; i < process.argv.length; i++) {
-  if (process.argv[i].indexOf('--inspect') !== -1 || process.argv[i].indexOf('--remote-debugging-port') !== -1) {
+  if (process.argv[i].startsWith('--inspect') || process.argv[i].startsWith('--remote-debugging-port')) {
     throw new Error('Not allow debugging this program.')
   }
 }
@@ -474,6 +474,7 @@ new BrowserWindow({
   // ...
   webPreferences: {
     nodeIntegration: true, // 渲染进程要使用 require
+    contextIsolation: false, // Electron 12 开始默认值为 true，要关掉
     devTools: false // 关掉开发者工具，因为开发者工具可以看到渲染进程的代码
   }
 })
diff --git a/app/check.js b/app/check.js
index 5fad72b..f417b1c 100644
--- a/app/check.js
+++ b/app/check.js
@@ -1,6 +1,6 @@
 for (let i = 0; i < process.argv.length; i++) {
   const arg = process.argv[i]
-  if (arg && arg.indexOf('--inspect') !== -1 || arg.indexOf('--remote-debugging-port') !== -1) {
+  if (arg.startsWith('--inspect') || arg.startsWith('--remote-debugging-port')) {
     throw new Error('Not allow debugging this program.')
   }
 }
diff --git a/app/win.js b/app/win.js
index 9dd73a8..e9f52d2 100644
--- a/app/win.js
+++ b/app/win.js
@@ -108,6 +108,8 @@ WindowManager.createMainWindow = function () {
       show: false,
       webPreferences: {
         nodeIntegration: true,
+        enableRemoteModule: false,
+        contextIsolation: false,
         devTools: false
       }
     }
diff --git a/package.json b/package.json
index 96296b3..0925cfd 100644
--- a/package.json
+++ b/package.json
@@ -1,14 +1,14 @@
 {
   "name": "electron-asar-encrypt-demo",
-  "version": "0.1.4",
+  "version": "0.1.5",
   "description": "electron-asar-encrypt-demo",
   "main": "pack.js",
   "scripts": {
     "keygen": "node ./script/keygen",
     "install": "node ./script/keygen",
     "postinstall": "node ./script/postinstall.js",
-    "build": "node ./script/js2c&&node-gyp configure --target=9.2.1 --disturl=https://electronjs.org/headers&&node-gyp build",
-    "build:debug": "node ./script/js2c&&node-gyp configure --target=9.2.1 --disturl=https://electronjs.org/headers&&node-gyp build --debug",
+    "build": "node ./script/js2c&&node-gyp configure --target=11.2.1 --disturl=https://electronjs.org/headers&&node-gyp build",
+    "build:debug": "node ./script/js2c&&node-gyp configure --target=11.2.1 --disturl=https://electronjs.org/headers&&node-gyp build --debug",
     "asar": "node ./script/pack",
     "test": "npm run keygen&&npm run build&&npm run asar&&node ./script/test",
     "dist": "node ./script/dist.js",
@@ -23,9 +23,9 @@
     "@tybys/cross-zip": "^3.1.0",
     "asar": "^3.0.3",
     "asar-node": "^2.1.3",
-    "electron": "9.2.1",
+    "electron": "11.2.1",
     "fs-extra": "^9.0.1",
-    "node-addon-api": "3.0.2",
+    "node-addon-api": "3.1.0",
     "node-gyp": "^5.1.1",
     "terser": "^4.7.0"
   }
diff --git a/script/dist.js b/script/dist.js
index a6df28b..48f5bda 100644
--- a/script/dist.js
+++ b/script/dist.js
@@ -1,3 +1,4 @@
 const cz = require('@tybys/cross-zip')
 const getPath = require('./path.js')
+require('fs').copyFileSync(getPath('./src/key.txt'), getPath(`test/key-${process.platform}-${process.arch}.txt`))
 cz.zipSync(getPath('test'), getPath(`dist/electron-encrypted-${process.platform}-${process.arch}.zip`))