diff --git a/package-lock.json b/package-lock.json
index 490f47f..dbe23e4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,7 +12,8 @@
         "gh-pages": "^6.1.1",
         "react": "^18.3.1",
         "react-dom": "^18.3.1",
-        "react-scripts": "5.0.1"
+        "react-scripts": "5.0.1",
+        "web-vitals": "^4.2.1"
       }
     },
     "node_modules/@alloc/quick-lru": {
@@ -16868,6 +16869,11 @@
         "minimalistic-assert": "^1.0.0"
       }
     },
+    "node_modules/web-vitals": {
+      "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/web-vitals/-/web-vitals-4.2.1.tgz",
+      "integrity": "sha512-U6bAxeudnhDqcXNl50JC4hLlqox9DZnngxfISZm3DMZnonW35xtJOVUc091L+DOY+6hVZVpKXoiCP0RiT6339Q=="
+    },
     "node_modules/webidl-conversions": {
       "version": "6.1.0",
       "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-6.1.0.tgz",
diff --git a/package.json b/package.json
index 0482bfe..b950bdc 100644
--- a/package.json
+++ b/package.json
@@ -1,38 +1 @@
-{ "homepage": "https://eunkong0_0.github.io/mutsa16-1/",
-  "name": "mutsa",
-  "version": "0.1.0",
-  "private": true,
-  "dependencies": {
-    "cra-template": "1.2.0",
-    "gh-pages": "^6.1.1",
-    "react": "^18.3.1",
-    "react-dom": "^18.3.1",
-    "react-scripts": "5.0.1"
-  },
-  "scripts": {
-    "start": "react-scripts start",
-    "build": "react-scripts build",
-    "test": "react-scripts test",
-    "eject": "react-scripts eject",
-    "predeploy": "npm run build",
-    "deploy": "gh-pages -d build"
-  },
-  "eslintConfig": {
-    "extends": [
-      "react-app",
-      "react-app/jest"
-    ]
-  },
-  "browserslist": {
-    "production": [
-      ">0.2%",
-      "not dead",
-      "not op_mini all"
-    ],
-    "development": [
-      "last 1 chrome version",
-      "last 1 firefox version",
-      "last 1 safari version"
-    ]
-  }
-}
+{"homepage":"https://eunkong0-0.github.io/mutsa16-1/","name":"mutsa","version":"0.1.0","private":true,"dependencies":{"cra-template":"1.2.0","gh-pages":"^6.1.1","react":"^18.3.1","react-dom":"^18.3.1","react-scripts":"5.0.1","web-vitals":"^4.2.1"},"scripts":{"start":"react-scripts start","build":"react-scripts build","test":"react-scripts test","eject":"react-scripts eject","predeploy":"npm run build","deploy":"gh-pages -d build"},"eslintConfig":{"extends":["react-app","react-app/jest"]},"browserslist":{"production":[">0.2%","not dead","not op_mini all"],"development":["last 1 chrome version","last 1 firefox version","last 1 safari version"]}}
\ No newline at end of file