diff --git a/web/plugins/i18n.ts b/web/plugins/i18n.ts
index 92126de02..1d770b677 100644
--- a/web/plugins/i18n.ts
+++ b/web/plugins/i18n.ts
@@ -1,18 +1,16 @@
 import { createI18n } from 'vue-i18n';
 
+import en_US from '@/locales/en_US.json';
+
 export default defineNuxtPlugin(({ vueApp }) => {
   const i18n = createI18n({
     legacy: false,
     globalInjection: true,
-    locale: 'ja',
+    locale: 'en_US',
+    fallbackLocale: 'en_US',
     messages: {
-      en: {
-        hello: 'Hello!'
-      },
-      ja: {
-        hello: 'こんにちは！'
-      }
-    }
+      en_US,
+    },
   });
 
   vueApp.use(i18n);