diff --git a/site/bisheng.config.js b/site/bisheng.config.js
index 748053f83a..4eab8058fc 100644
--- a/site/bisheng.config.js
+++ b/site/bisheng.config.js
@@ -90,7 +90,12 @@ module.exports = {
       config.resolve.alias = { ...config.resolve.alias, react: require.resolve('react') };
     } else if (process.env.ESBUILD) {
       // use esbuild
-      config.optimization.minimizer = [new EsbuildPlugin(), new CssMinimizerPlugin()];
+      config.optimization.minimizer = [
+        new EsbuildPlugin({
+          target: 'chrome49',
+        }),
+        new CssMinimizerPlugin(),
+      ];
     }
 
     alertBabelConfig(config.module.rules);
diff --git a/webpack.config.js b/webpack.config.js
index e1de0f461d..3d9480bffa 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -99,7 +99,9 @@ if (process.env.RUN_ENV === 'PRODUCTION') {
     config.optimization.usedExports = true;
     // use esbuild
     if (process.env.ESBUILD || process.env.CSB_REPO) {
-      config.optimization.minimizer[0] = new EsbuildPlugin();
+      config.optimization.minimizer[0] = new EsbuildPlugin({
+        target: 'chrome49',
+      });
     }
 
     config.plugins.push(