diff --git a/lib/country_codes.dart b/lib/country_codes.dart
index 993be09..ab11e3e 100644
--- a/lib/country_codes.dart
+++ b/lib/country_codes.dart
@@ -1,4 +1,4 @@
-List<Map<String, String>> codes = [
+const List<Map<String, String>> codes = [
   {
     "name": "افغانستان",
     "code": "AF",