diff --git a/src/__data__/languages.json b/src/__data__/languages.json
index 3bbe12d..4a42360 100644
--- a/src/__data__/languages.json
+++ b/src/__data__/languages.json
@@ -65,7 +65,7 @@
     "nativeName": "Português",
     "country": "br",
     "antLocale": "pt_BR",
-    "dayjsLocale": "br",
+    "dayjsLocale": "pt-br",
     "timeagoLocale": "pt-br",
     "contributors": [
       {