diff --git a/.env b/.env
index 46823dd..f41865f 100644
--- a/.env
+++ b/.env
@@ -1,7 +1,6 @@
 SAFETWITCH_BACKEND_DOMAIN=localhost:7000
 SAFETWITCH_INSTANCE_DOMAIN=localhost:5173
 SAFETWITCH_HTTPS=false
-SAFETWITCH_DEFAULT_LOCALE=en
-SAFETWITCH_FALLBACK_LOCALE=ja
-VUE_APP_I18N_LOCALE=en
-VUE_APP_I18N_FALLBACK_LOCALE=ja
+SAFETWITCH_DEFAULT_LOCALE=en-US
+SAFETWITCH_DEFAULT_THEME=dark
+SAFETWITCH_FALLBACK_LOCALE=en-US
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 05be3b3..274183f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5254,9 +5254,9 @@
       }
     },
     "node_modules/vite": {
-      "version": "4.5.0",
-      "resolved": "https://registry.npmjs.org/vite/-/vite-4.5.0.tgz",
-      "integrity": "sha512-ulr8rNLA6rkyFAlVWw2q5YJ91v098AFQ2R0PRFwPzREXOUJQPtFUG0t+/ZikhaOCDqFoDhN6/v8Sq0o4araFAw==",
+      "version": "4.5.2",
+      "resolved": "https://registry.npmjs.org/vite/-/vite-4.5.2.tgz",
+      "integrity": "sha512-tBCZBNSBbHQkaGyhGCDUGqeo2ph8Fstyp6FMSvTtsXeZSPpSMGlviAOav2hxVTqFcx8Hj/twtWKsMJXNY0xI8w==",
       "dev": true,
       "dependencies": {
         "esbuild": "^0.18.10",
diff --git a/src/i18n.ts b/src/i18n.ts
index 810ba07..a594416 100644
--- a/src/i18n.ts
+++ b/src/i18n.ts
@@ -29,7 +29,7 @@ export default createI18n({
     'he-IL': he,
     'ru-RU': ru,
     'ko-KR': ko,
-    'cd-CZ': cs,
+    'cs-CZ': cs,
     'pl-PL': pl,
     'it-IT': it,
     'fr-FR': fr,