diff --git a/backend-api/scripts/config.common.mjs b/backend-api/scripts/config.common.mjs
index 25c7cd6..836b1f5 100644
--- a/backend-api/scripts/config.common.mjs
+++ b/backend-api/scripts/config.common.mjs
@@ -9,7 +9,12 @@ export default {
   entryPoints: [path.resolve(dirname, '../entrypoints/index.ts')],
   outdir: path.resolve(dirname, '../'),
   platform: 'node',
-  target: 'node20',
+  target: 'node22',
+  format: 'esm',
+  banner: {
+    // commonjs用ライブラリをESMプロジェクトでbundleする際に生じることのある問題への対策
+    js: 'import { createRequire } from "module"; import url from "url"; const require = createRequire(import.meta.url); const __filename = url.fileURLToPath(import.meta.url); const __dirname = url.fileURLToPath(new URL(".", import.meta.url));',
+  },
   bundle: true,
   plugins: [nodeExternalsPlugin()],
   logLevel: 'info',