diff --git a/lang/Iran/en/holidays.json b/lang/iran/en/holidays.json
similarity index 100%
rename from lang/Iran/en/holidays.json
rename to lang/iran/en/holidays.json
diff --git a/lang/Iran/fa/holidays.json b/lang/iran/fa/holidays.json
similarity index 100%
rename from lang/Iran/fa/holidays.json
rename to lang/iran/fa/holidays.json
diff --git a/tests/Countries/IranTest.php b/tests/Countries/IranTest.php
index 0c5c23f04..f356bba8f 100644
--- a/tests/Countries/IranTest.php
+++ b/tests/Countries/IranTest.php
@@ -19,7 +19,7 @@
 
 it('can calculate iran holidays in local', function (string $locale, string $newYearsDayName) {
     CarbonImmutable::setTestNow('2024-01-01');
-    $result = Holidays::for(country: 'ir', year: null, locale: $locale)->get();
+    $result = Holidays::for(country: 'ir', locale: $locale)->get();
 
     expect($result)->toBeArray();
     expect($result[7]['name'])->toBe($newYearsDayName);