diff --git a/client/src/entities/test-checklist/api/test-checklist-api.ts b/client/src/entities/test-checklist/api/test-checklist-api.ts
index 8b56987..a02ab4c 100644
--- a/client/src/entities/test-checklist/api/test-checklist-api.ts
+++ b/client/src/entities/test-checklist/api/test-checklist-api.ts
@@ -1,21 +1,27 @@
 import { apiClient } from '@/shared/api/client'
 
-export interface ChecklistResultDto {
+export type ChecklistResultDto = {
   passed: boolean
   checkedAt: string
 }
 
-export interface TestChecklistResponse {
+export type TestChecklistResponse = {
   results: Record<string, ChecklistResultDto>
 }
 
+export type UpdateChecklistItemResponse = {
+  itemKey: string
+  passed: boolean
+  checkedAt: string
+}
+
 export async function fetchTestChecklistResults(): Promise<TestChecklistResponse> {
   const { data } = await apiClient.get<TestChecklistResponse>('admin/test-checklist')
   return data
 }
 
-export async function updateTestChecklistItem(itemKey: string, passed: boolean): Promise<{ itemKey: string; passed: boolean; checkedAt: string }> {
-  const { data } = await apiClient.patch<{ result: { itemKey: string; passed: boolean; checkedAt: string } }>('admin/test-checklist', { itemKey, passed })
+export async function updateTestChecklistItem(itemKey: string, passed: boolean): Promise<UpdateChecklistItemResponse> {
+  const { data } = await apiClient.patch<{ result: UpdateChecklistItemResponse }>('admin/test-checklist', { itemKey, passed })
   return data.result
 }