diff --git a/app/src/card/viewCards.ts b/app/src/card/viewCards.ts
index 0f2ae296c..16044ff07 100644
--- a/app/src/card/viewCards.ts
+++ b/app/src/card/viewCards.ts
@@ -163,7 +163,7 @@ const renderViewItem = (blocks: IBlock[], title: string, deckType: string) => {
     pathArray.splice(0, 1);
     blocks.forEach((item: IBlock) => {
         if (item.type) {
-            let hPath
+            let hPath;
             if (deckType === "") {
                 hPath = getNotebookName(item.box) + getDisplayName(Lute.UnEscapeHTMLStr(item.hPath), false);
             } else {
diff --git a/app/src/layout/Wnd.ts b/app/src/layout/Wnd.ts
index fa7342245..0a42f2b6d 100644
--- a/app/src/layout/Wnd.ts
+++ b/app/src/layout/Wnd.ts
@@ -12,7 +12,7 @@ import {Tab} from "./Tab";
 import {Model} from "./Model";
 import {Editor} from "../editor";
 import {Graph} from "./dock/Graph";
-import {hasClosestByAttribute, hasClosestByClassName, hasClosestByTag} from "../protyle/util/hasClosest";
+import {hasClosestByAttribute, hasClosestByClassName} from "../protyle/util/hasClosest";
 import {Constants} from "../constants";
 /// #if !BROWSER
 import {webFrame, ipcRenderer} from "electron";
diff --git a/app/tsconfig.json b/app/tsconfig.json
index 05f6b94ca..3add41bd0 100644
--- a/app/tsconfig.json
+++ b/app/tsconfig.json
@@ -3,7 +3,7 @@
     "outDir": "./dist/",
     "noImplicitAny": true,
     "module": "commonjs",
-    "target": "es6",
+    "target": "es2021",
     "typeRoots": [
       "./node_modules/@types"
     ],
diff --git a/app/webpack.config.js b/app/webpack.config.js
index c9c6895fd..edb85e9f6 100644
--- a/app/webpack.config.js
+++ b/app/webpack.config.js
@@ -48,6 +48,9 @@ module.exports = (env, argv) => {
                     use: [
                         {
                             loader: "esbuild-loader",
+                            options: {
+                                target: "es2021",
+                            },
                         },
                         {
                             loader: "ifdef-loader", options: {