diff --git a/backend/src/main/java/com/srsystem/service/EmployeeService.java b/backend/src/main/java/com/srsystem/service/EmployeeService.java
index 5990809..1ced14d 100644
--- a/backend/src/main/java/com/srsystem/service/EmployeeService.java
+++ b/backend/src/main/java/com/srsystem/service/EmployeeService.java
@@ -96,13 +96,6 @@ public class EmployeeService {
             throw new BusinessException(ErrorCode.RESIGNED_EMPLOYEE);
         }
 
-        if (!employee.getLoginId().equals(updateRequest.getLoginId())) {
-            if (employeeRepository.findByLoginId(updateRequest.getLoginId()).isPresent()) {
-                throw new BusinessException(ErrorCode.DUPLICATE_LOGIN_ID);
-            }
-            employee.setLoginId(updateRequest.getLoginId());
-        }
-
         employee.setName(updateRequest.getName());
         employee.setEmail(updateRequest.getEmail());
         employee.setPhone(updateRequest.getPhone());