diff --git a/src/Countries/Sweden.php b/src/Countries/Sweden.php
index fce4f713..1930b154 100644
--- a/src/Countries/Sweden.php
+++ b/src/Countries/Sweden.php
@@ -17,8 +17,8 @@ protected function allHolidays(int $year): array
         return array_merge([
             'Nyårsdagen' => '01-01',
             'Trettondedag jul' => '01-06',
-            'Första maj' => '05-1',
-            'Nationaldagen' => '06-6',
+            'Första maj' => '05-01',
+            'Nationaldagen' => '06-06',
             'Juldagen' => '12-25',
             'Annandag jul' => '12-26',
         ], $this->variableHolidays($year));