diff --git a/src/Console/Commands/Check/CheckHttpResponseCommand.php b/src/Console/Commands/Check/CheckHttpResponseCommand.php
index 4bc2f59..41be613 100644
--- a/src/Console/Commands/Check/CheckHttpResponseCommand.php
+++ b/src/Console/Commands/Check/CheckHttpResponseCommand.php
@@ -99,7 +99,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
     $authPath = (string)$input->getOption('auth-path');
     if ($authPath !== '' && is_readable($authPath)) {}
 
-    $statusCodes = (array)$input->getOption('status-code');
+    $statusCodes = array_map('intval', (array)$input->getOption('status-code'));
 
     $matchKeywords = (array)$input->getOption('match-keyword');
     $notMatchKeywords = (array)$input->getOption('not-match-keyword');