diff --git a/app/Http/Controllers/Barobill/HometaxController.php b/app/Http/Controllers/Barobill/HometaxController.php
index 5bdee3df..55aa0ba9 100644
--- a/app/Http/Controllers/Barobill/HometaxController.php
+++ b/app/Http/Controllers/Barobill/HometaxController.php
@@ -595,7 +595,7 @@ private function callSoap(string $method, array $params = []): array
             ])
             ->withHeaders([
                 'Content-Type' => 'text/xml; charset=utf-8',
-                'SOAPAction' => 'https://www.baroservice.com/' . $method,
+                'SOAPAction' => 'http://ws.baroservice.com/' . $method,
             ])
             ->withBody($soapXml, 'text/xml')
             ->timeout(30)
@@ -634,7 +634,7 @@ private function buildSoapRequest(string $method, array $params): string
         }
 
         return '<?xml version="1.0" encoding="utf-8"?>
-<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:bar="https://www.baroservice.com/">
+<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:bar="http://ws.baroservice.com/">
   <soap:Body>
     <bar:' . $method . '>
       ' . $paramsXml . '
@@ -660,7 +660,7 @@ private function parseSoapResponse(string $xmlResponse, string $method): array
 
             // 네임스페이스 등록
             $xml->registerXPathNamespace('soap', 'http://schemas.xmlsoap.org/soap/envelope/');
-            $xml->registerXPathNamespace('bar', 'https://www.baroservice.com/');
+            $xml->registerXPathNamespace('bar', 'http://ws.baroservice.com/');
 
             // 결과 노드 찾기
             $resultNodes = $xml->xpath("//bar:{$method}Response/bar:{$method}Result");