diff --git a/apps/server/src/services/i18n.ts b/apps/server/src/services/i18n.ts
index c849ecc5a..edc2115b8 100644
--- a/apps/server/src/services/i18n.ts
+++ b/apps/server/src/services/i18n.ts
@@ -18,7 +18,7 @@ const DAYJS_LOADER: Record<LOCALE_IDS, () => Promise<typeof import("dayjs/locale
     "he": () => import("dayjs/locale/he.js"),
     "ja": () => import("dayjs/locale/ja.js"),
     "ku": () => import("dayjs/locale/ku.js"),
-    "pt_BR": () => import("dayjs/locale/pt_BR.js"),
+    "pt_br": () => import("dayjs/locale/pt-br.js"),
     "ro": () => import("dayjs/locale/ro.js"),
     "ru": () => import("dayjs/locale/ru.js"),
     "tw": () => import("dayjs/locale/zh-tw.js"),