diff --git a/etc/webpack.common.js b/etc/webpack.common.js
index 564b85d..de7bf34 100644
--- a/etc/webpack.common.js
+++ b/etc/webpack.common.js
@@ -30,7 +30,7 @@ module.exports = {
         exclude: /node_modules/,
         options: {
           loader: "tsx",
-          target: "ES5"
+          target: "ES2020"
         }
       },
     ],