diff --git a/locales/pl/auth.json b/locales/pl/auth.json
index f539d790..fb453044 100644
--- a/locales/pl/auth.json
+++ b/locales/pl/auth.json
@@ -6,10 +6,10 @@
 	"register": {
 		"REGISTRATION_DISABLED": "Rejestracja nowego użytkownika jest wyłączona",
 		"INVITE_ONLY": "Musisz być zaproszony do rejestracji",
-		"EMAIL_INVALID": "Invalid Email",
+		"EMAIL_INVALID": "Nieprawidłowy email",
 		"EMAIL_ALREADY_REGISTERED": "E-mail jest już zarejestrowany",
-		"DATE_OF_BIRTH_UNDERAGE": "Musisz być {{years}} lat lub starszy",
+		"DATE_OF_BIRTH_UNDERAGE": "Musisz mieć {{years}} lat lub więcej",
 		"CONSENT_REQUIRED": "Musisz zaakceptować Regulamin i Politykę Prywatności.",
-		"USERNAME_TOO_MANY_USERS": "Zbyt wielu użytkowników ma tę nazwę użytkownika, spróbuj innego"
+		"USERNAME_TOO_MANY_USERS": "Zbyt wielu użytkowników ma tę nazwę użytkownika, spróbuj inną"
 	}
 }
diff --git a/locales/pl/common.json b/locales/pl/common.json
index 6ec48f63..2291905d 100644
--- a/locales/pl/common.json
+++ b/locales/pl/common.json
@@ -11,7 +11,7 @@
     "BASE_TYPE_ARRAY": "To pole musi być tablicą",
     "UNKOWN_FIELD": "Nieznany klucz: {{key}}",
     "BASE_TYPE_CONSTANT": "To pole musi być {{value}}",
-    "EMAIL_TYPE_INVALID_EMAIL": "Niedobrze sformułowany adres e-mail",
+    "EMAIL_TYPE_INVALID_EMAIL": "Źle sformułowany adres e-mail",
     "DATE_TYPE_PARSE": "Nie można przetworzyć {{date}}. Powinno być ISO8601",
     "BASE_TYPE_BAD_LENGTH": "Musi być pomiędzy {{length}}"
   }
diff --git a/locales/vi/auth.json b/locales/vi/auth.json
index 025a3876..00a8b0cc 100644
--- a/locales/vi/auth.json
+++ b/locales/vi/auth.json
@@ -1,15 +1,15 @@
 {
 	"login": {
-		"INVALID_LOGIN": "E-Mail or Phone not found",
-		"INVALID_PASSWORD": "Invalid Password"
+		"INVALID_LOGIN": "E-mail hoặc số điện thoại không tồn tại",
+		"INVALID_PASSWORD": "Sai mật khẩu"
 	},
 	"register": {
-		"REGISTRATION_DISABLED": "New user registration is disabled",
-		"INVITE_ONLY": "You must be invited to register",
-		"EMAIL_INVALID": "Invalid Email",
-		"EMAIL_ALREADY_REGISTERED": "Email is already registered",
+		"REGISTRATION_DISABLED": "Hệ thống hiện không cho phép tài khoản mới",
+		"INVITE_ONLY": "Bạn cần được mời để tạo tài khoản",
+		"EMAIL_INVALID": "Email không hợp lệ",
+		"EMAIL_ALREADY_REGISTERED": "Email đã tồn tại",
 		"DATE_OF_BIRTH_UNDERAGE": "You need to be {{years}} years or older",
 		"CONSENT_REQUIRED": "You must agree to Terms of Service and Privacy Policy.",
-		"USERNAME_TOO_MANY_USERS": "Too many users have this username, please try another"
+		"USERNAME_TOO_MANY_USERS": "Quá nhiều tài khoản trùng với username bạn chọn, xin vui lòng chọn username khác"
 	}
 }