diff --git a/app/tsconfig.json b/app/tsconfig.json
index 3add41bd01a..05f6b94ca74 100644
--- a/app/tsconfig.json
+++ b/app/tsconfig.json
@@ -3,7 +3,7 @@
     "outDir": "./dist/",
     "noImplicitAny": true,
     "module": "commonjs",
-    "target": "es2021",
+    "target": "es6",
     "typeRoots": [
       "./node_modules/@types"
     ],
diff --git a/app/webpack.api.js b/app/webpack.api.js
index 3bfc50d4560..d7b39366f14 100644
--- a/app/webpack.api.js
+++ b/app/webpack.api.js
@@ -3,67 +3,70 @@ const webpack = require("webpack");
 const pkg = require("./package.json");
 const {CleanWebpackPlugin} = require("clean-webpack-plugin");
 // const BundleAnalyzerPlugin = require("webpack-bundle-analyzer").BundleAnalyzerPlugin;
-const { EsbuildPlugin } = require("esbuild-loader");
+const {EsbuildPlugin} = require("esbuild-loader");
 
 module.exports = (env, argv) => {
-  return {
-    mode: argv.mode || "development",
-    watch: argv.mode !== "production",
-    devtool: argv.mode !== "production" ? "eval" : false,
-    output: {
-      publicPath: "",
-      filename: "[name].js",
-      path: path.resolve(__dirname, "stage/build/api"),
-      libraryTarget: "umd",
-      library: "SiYuanAPI",
-      libraryExport: "default",
-    },
-    entry: {
-      "api": "./src/api.ts",
-    },
-    optimization: {
-      minimize: true,
-      minimizer: [
-        new EsbuildPlugin(),
-      ],
-    },
-    resolve: {
-      fallback: {
-        "path": require.resolve("path-browserify"),
-      },
-      extensions: [".ts", ".js", ".scss"],
-    },
-    module: {
-      rules: [
-        {
-          test: /\.ts(x?)$/,
-          include: [path.resolve(__dirname, "src")],
-          use: [
-            {
-              loader: "esbuild-loader",
+    return {
+        mode: argv.mode || "development",
+        watch: argv.mode !== "production",
+        devtool: argv.mode !== "production" ? "eval" : false,
+        output: {
+            publicPath: "",
+            filename: "[name].js",
+            path: path.resolve(__dirname, "stage/build/api"),
+            libraryTarget: "umd",
+            library: "SiYuanAPI",
+            libraryExport: "default",
+        },
+        entry: {
+            "api": "./src/api.ts",
+        },
+        optimization: {
+            minimize: true,
+            minimizer: [
+                new EsbuildPlugin({target: "es6"}),
+            ],
+        },
+        resolve: {
+            fallback: {
+                "path": require.resolve("path-browserify"),
             },
-            {
-              loader: "ifdef-loader",
-              options: {
-                "ifdef-verbose": false,
-                BROWSER: true,
-                MOBILE: true,
-              },
-            },
-          ],
-        }
-      ],
-    },
-    plugins: [
-      // new BundleAnalyzerPlugin(),
-      new CleanWebpackPlugin({
-        cleanOnceBeforeBuildPatterns: [
-          path.join(__dirname, "stage/build/api")],
-      }),
-      new webpack.DefinePlugin({
-        NODE_ENV: JSON.stringify(argv.mode),
-        SIYUAN_VERSION: JSON.stringify(pkg.version),
-      }),
-    ],
-  };
+            extensions: [".ts", ".js", ".scss"],
+        },
+        module: {
+            rules: [
+                {
+                    test: /\.ts(x?)$/,
+                    include: [path.resolve(__dirname, "src")],
+                    use: [
+                        {
+                            loader: "esbuild-loader",
+                            options: {
+                                target: "es6",
+                            }
+                        },
+                        {
+                            loader: "ifdef-loader",
+                            options: {
+                                "ifdef-verbose": false,
+                                BROWSER: true,
+                                MOBILE: true,
+                            },
+                        },
+                    ],
+                }
+            ],
+        },
+        plugins: [
+            // new BundleAnalyzerPlugin(),
+            new CleanWebpackPlugin({
+                cleanOnceBeforeBuildPatterns: [
+                    path.join(__dirname, "stage/build/api")],
+            }),
+            new webpack.DefinePlugin({
+                NODE_ENV: JSON.stringify(argv.mode),
+                SIYUAN_VERSION: JSON.stringify(pkg.version),
+            }),
+        ],
+    };
 };
diff --git a/app/webpack.config.js b/app/webpack.config.js
index edb85e9f6a2..1a78e14dce9 100644
--- a/app/webpack.config.js
+++ b/app/webpack.config.js
@@ -27,7 +27,7 @@ module.exports = (env, argv) => {
         optimization: {
             minimize: true,
             minimizer: [
-                new EsbuildPlugin(),
+                new EsbuildPlugin({target: "es2021"}),
             ],
         },
         module: {
diff --git a/app/webpack.export.js b/app/webpack.export.js
index 353c3236dc3..019e6b743fd 100644
--- a/app/webpack.export.js
+++ b/app/webpack.export.js
@@ -25,7 +25,7 @@ module.exports = (env, argv) => {
         optimization: {
             minimize: true,
             minimizer: [
-                new EsbuildPlugin(),
+                new EsbuildPlugin({target: "es6"}),
             ],
         },
         resolve: {
@@ -42,6 +42,9 @@ module.exports = (env, argv) => {
                     use: [
                         {
                             loader: "esbuild-loader",
+                            options: {
+                                target: "es6",
+                            }
                         },
                         {
                             loader: "ifdef-loader",