diff --git a/backend/package-lock.json b/backend/package-lock.json
index 07a4010..5d36156 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -9,6 +9,7 @@
       "version": "2.0.0",
       "dependencies": {
         "@aws-sdk/client-s3": "^3.970.0",
+        "@fastify/cors": "^11.2.0",
         "@fastify/jwt": "^10.0.0",
         "@fastify/multipart": "^9.3.0",
         "@fastify/static": "^8.0.0",
@@ -978,6 +979,26 @@
       "integrity": "sha512-m9FVDXU3GT2ITSe0UaMA5rU3QkfC/UXtCU8y0gSN/GugTqtVldOBWIB5V6V3sbmenVZUIpU6f+mPEO2+m5iTaA==",
       "license": "MIT"
     },
+    "node_modules/@fastify/cors": {
+      "version": "11.2.0",
+      "resolved": "https://registry.npmjs.org/@fastify/cors/-/cors-11.2.0.tgz",
+      "integrity": "sha512-LbLHBuSAdGdSFZYTLVA3+Ch2t+sA6nq3Ejc6XLAKiQ6ViS2qFnvicpj0htsx03FyYeLs04HfRNBsz/a8SvbcUw==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/fastify"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/fastify"
+        }
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "fastify-plugin": "^5.0.0",
+        "toad-cache": "^3.7.0"
+      }
+    },
     "node_modules/@fastify/deepmerge": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/@fastify/deepmerge/-/deepmerge-3.1.0.tgz",
diff --git a/backend/package.json b/backend/package.json
index 1723d67..b9764d2 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -8,6 +8,7 @@
   },
   "dependencies": {
     "@aws-sdk/client-s3": "^3.970.0",
+    "@fastify/cors": "^11.2.0",
     "@fastify/jwt": "^10.0.0",
     "@fastify/multipart": "^9.3.0",
     "@fastify/static": "^8.0.0",
diff --git a/backend/src/app.js b/backend/src/app.js
index b77c5f7..b9c3277 100644
--- a/backend/src/app.js
+++ b/backend/src/app.js
@@ -2,6 +2,7 @@ import fs from 'fs';
 import path from 'path';
 import { fileURLToPath } from 'url';
 import Fastify from 'fastify';
+import fastifyCors from '@fastify/cors';
 import fastifyStatic from '@fastify/static';
 import fastifySwagger from '@fastify/swagger';
 import multipart from '@fastify/multipart';
@@ -34,6 +35,14 @@ export async function buildApp(opts = {}) {
   // config 데코레이터 등록
   fastify.decorate('config', config);
 
+  // CORS 설정 (API 문서 포털에서 테스트 요청 허용)
+  await fastify.register(fastifyCors, {
+    origin: ['https://docs.caadiq.co.kr'],
+    methods: ['GET', 'POST', 'PUT', 'DELETE', 'OPTIONS'],
+    allowedHeaders: ['Content-Type', 'Authorization'],
+    credentials: true,
+  });
+
   // multipart 플러그인 등록 (파일 업로드용)
   await fastify.register(multipart, {
     limits: {
@@ -91,10 +100,8 @@ export async function buildApp(opts = {}) {
     },
   });
 
-  // OpenAPI JSON 엔드포인트 (CORS 허용 - API 문서 포털용)
-  fastify.get('/docs/json', { schema: { hide: true } }, async (request, reply) => {
-    reply.header('Access-Control-Allow-Origin', 'https://docs.caadiq.co.kr');
-    reply.header('Access-Control-Allow-Methods', 'GET');
+  // OpenAPI JSON 엔드포인트
+  fastify.get('/docs/json', { schema: { hide: true } }, async () => {
     return fastify.swagger();
   });
 
diff --git a/backend/src/services/meilisearch/index.js b/backend/src/services/meilisearch/index.js
index 65f19e0..f75fd6e 100644
--- a/backend/src/services/meilisearch/index.js
+++ b/backend/src/services/meilisearch/index.js
@@ -151,7 +151,6 @@ function formatScheduleResponse(hit) {
     },
     source,
     members,
-    _rankingScore: hit._rankingScore,
   };
 }