diff --git a/frontend/playwright.api.config.ts b/frontend/playwright.api.config.ts
index 1de4307fa..ee11c47f1 100644
--- a/frontend/playwright.api.config.ts
+++ b/frontend/playwright.api.config.ts
@@ -19,7 +19,7 @@ export default defineConfig({
   /* Retry on CI only */
   retries: process.env.CI ? 2 : 0,
   /* Opt out of parallel tests on CI. */
-  workers: process.env.CI ? 1 : undefined,
+  workers: process.env.CI ? 4 : undefined,
   /* Reporter to use. See https://playwright.dev/docs/test-reporters */
   reporter: 'html',
   /* Shared settings for all the projects below. See https://playwright.dev/docs/api/class-testoptions. */
@@ -41,11 +41,11 @@ export default defineConfig({
       dependencies: ['setup'],
     },
 
-    {
-      name: 'firefox',
-      use: { ...devices['Desktop Firefox'], storageState: 'playwright/.auth/user.json' },
-      dependencies: ['setup'],
-    },
+    // {
+    //   name: 'firefox',
+    //   use: { ...devices['Desktop Firefox'], storageState: 'playwright/.auth/user.json' },
+    //   dependencies: ['setup'],
+    // },
 
     {
       name: 'webkit',
diff --git a/frontend/playwright.mock.config.ts b/frontend/playwright.mock.config.ts
index d737aceb8..cfbd11fed 100644
--- a/frontend/playwright.mock.config.ts
+++ b/frontend/playwright.mock.config.ts
@@ -19,7 +19,7 @@ export default defineConfig({
   /* Retry on CI only */
   retries: process.env.CI ? 2 : 0,
   /* Opt out of parallel tests on CI. */
-  workers: process.env.CI ? 1 : undefined,
+  workers: process.env.CI ? 4 : undefined,
   /* Reporter to use. See https://playwright.dev/docs/test-reporters */
   reporter: 'html',
   /* Shared settings for all the projects below. See https://playwright.dev/docs/api/class-testoptions. */
@@ -38,10 +38,10 @@ export default defineConfig({
       use: { ...devices['Desktop Chrome'] },
     },
 
-    {
-      name: 'firefox',
-      use: { ...devices['Desktop Firefox'] },
-    },
+    // {
+    //   name: 'firefox',
+    //   use: { ...devices['Desktop Firefox'] },
+    // },
 
     {
       name: 'webkit',
diff --git a/frontend/src/apis/checklist.ts b/frontend/src/apis/checklist.ts
index 7ec6e1267..7e18eca45 100644
--- a/frontend/src/apis/checklist.ts
+++ b/frontend/src/apis/checklist.ts
@@ -18,8 +18,9 @@ export const getChecklistAllQuestions = async () => {
 
 export const getChecklistDetail = async (id: number) => {
   const response = await fetcher.get({ url: BASE_URL + ENDPOINT.CHECKLIST_ID_V1(id) });
-  const data = await response.json();
-  return data as ChecklistInfo;
+  const data = (await response.json()) as ChecklistInfo;
+  data.room = Object.fromEntries(Object.entries(data.room).filter(([, value]) => value !== null));
+  return data;
 };
 
 export const getChecklists = async (isLikeFiltered: boolean = false) => {