diff --git a/src/Eccube/Service/Composer/ComposerProcessService.php b/src/Eccube/Service/Composer/ComposerProcessService.php
index 7a5b0085c65..e409b545704 100644
--- a/src/Eccube/Service/Composer/ComposerProcessService.php
+++ b/src/Eccube/Service/Composer/ComposerProcessService.php
@@ -141,11 +141,11 @@ public function execConfig($key, $value = null)
 
     public function configureRepository(BaseInfo $BaseInfo)
     {
-        composerApiService->configureRepository($BaseInfo);
+        $this->composerApiService->configureRepository($BaseInfo);
     }
 
     public function foreachRequires($packageName, $version, $callback, $typeFilter = null, $level = 0)
     {
-        composerApiService->foreachRequires($packageName, $version, $callback, $typeFilter, $level);
+        $this->composerApiService->foreachRequires($packageName, $version, $callback, $typeFilter, $level);
     }
 }