diff --git a/tools/build.ts b/tools/build.ts
index 2b469c8..041bca2 100644
--- a/tools/build.ts
+++ b/tools/build.ts
@@ -62,7 +62,7 @@ function compile (fileNames: string[], options: CompilerOptions): Record<string,
       type: 'es6'
     },
     jsc: {
-      target: 'es2022',
+      target: 'es2020',
       experimental: {
         plugins: [
           [
@@ -102,7 +102,7 @@ function compile (fileNames: string[], options: CompilerOptions): Record<string,
       type: 'commonjs'
     },
     jsc: {
-      target: 'es2022',
+      target: 'es2020',
       experimental: {
         plugins: [
           [
diff --git a/tools/demo.webpack.config.ts b/tools/demo.webpack.config.ts
index d1665fc..a430131 100644
--- a/tools/demo.webpack.config.ts
+++ b/tools/demo.webpack.config.ts
@@ -23,8 +23,7 @@ const webpackConfig: webpack.Configuration = {
   module: {
     rules: [
       {
-        test: /\.tsx?$/,
-        exclude: /node_modules\/.*/,
+        test: /\.tsx?|\.js$/,
         loader: 'swc-loader',
         options: {
           jsc: {