diff --git a/src/Eccube/Security/Core/User/CustomerProvider.php b/src/Eccube/Security/Core/User/CustomerProvider.php
index 1643488451f..8b50eee32ce 100644
--- a/src/Eccube/Security/Core/User/CustomerProvider.php
+++ b/src/Eccube/Security/Core/User/CustomerProvider.php
@@ -89,6 +89,6 @@ public function refreshUser(UserInterface $user)
      */
     public function supportsClass($class)
     {
-        return Customer::class === $class;
+        return Customer::class === $class || is_subclass_of($class, Customer::class);
     }
 }
diff --git a/src/Eccube/Security/Core/User/MemberProvider.php b/src/Eccube/Security/Core/User/MemberProvider.php
index f045d12dc46..5b6a70da1f8 100644
--- a/src/Eccube/Security/Core/User/MemberProvider.php
+++ b/src/Eccube/Security/Core/User/MemberProvider.php
@@ -86,6 +86,6 @@ public function refreshUser(UserInterface $user)
      */
     public function supportsClass($class)
     {
-        return Member::class === $class;
+        return Member::class === $class || is_subclass_of($class, Member::class);
     }
 }