diff --git a/project/app.js b/project/app.js
index 530f3481..d31236d1 100644
--- a/project/app.js
+++ b/project/app.js
@@ -38,13 +38,18 @@ let isRecoveredLoading = false;
 
 // api
 function fetchCovidSummary() {
-  const url = 'https://api.covid19api.com/summary';
+  const url = 'https://ts-covid-api.vercel.app/api/summary';
   return axios.get(url);
 }
 
+/**
+ * 
+ * @param {'spain' | 'switzerland'} countryCode 스페인과 스위스만 지원됩니다.
+ * @returns 
+ */
 function fetchCountryInfo(countryCode, status) {
   // params: confirmed, recovered, deaths
-  const url = `https://api.covid19api.com/country/${countryCode}/status/${status}`;
+  const url = `https://ts-covid-api.vercel.app/api/country/${countryCode}`;
   return axios.get(url);
 }
 
@@ -77,20 +82,28 @@ async function handleListClick(event) {
   clearRecoveredList();
   startLoadingAnimation();
   isDeathLoading = true;
-  const { data: deathResponse } = await fetchCountryInfo(selectedId, 'deaths');
-  const { data: recoveredResponse } = await fetchCountryInfo(
-    selectedId,
-    'recovered',
-  );
+
+  console.log({selectedId});
+
+  /**
+   * NOTE: 코로나 종식으로 오픈 API 지원이 끝나서 death, recover 데이터는 지원되지 않습니다.
+   *       그리고 국가별 상세 정보는 "스페인"과 "스위스"만 지원됩니다.
+   */
+  // const { data: deathResponse } = await fetchCountryInfo(selectedId, 'deaths');
+  // const { data: recoveredResponse } = await fetchCountryInfo(
+  //   selectedId,
+  //   'recovered',
+  // );
   const { data: confirmedResponse } = await fetchCountryInfo(
     selectedId,
     'confirmed',
   );
   endLoadingAnimation();
-  setDeathsList(deathResponse);
-  setTotalDeathsByCountry(deathResponse);
-  setRecoveredList(recoveredResponse);
-  setTotalRecoveredByCountry(recoveredResponse);
+  // NOTE: 코로나 종식으로 오픈 API 지원이 끝나서 death, recover 데이터는 지원되지 않습니다.
+  // setDeathsList(deathResponse);
+  // setTotalDeathsByCountry(deathResponse);
+  // setRecoveredList(recoveredResponse);
+  // setTotalRecoveredByCountry(recoveredResponse);
   setChartData(confirmedResponse);
   isDeathLoading = false;
 }
@@ -168,8 +181,6 @@ async function setupData() {
 
 function renderChart(data, labels) {
   var ctx = $('#lineChart').getContext('2d');
-  Chart.defaults.color = '#f5eaea';
-  Chart.defaults.font.family = 'Exo 2';
   new Chart(ctx, {
     type: 'line',
     data: {
diff --git a/quiz/1_todo/package-lock.json b/quiz/1_todo/package-lock.json
index 225f9d09..44cb227b 100644
--- a/quiz/1_todo/package-lock.json
+++ b/quiz/1_todo/package-lock.json
@@ -1042,9 +1042,9 @@
       "dev": true
     },
     "ajv": {
-      "version": "6.12.0",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.0.tgz",
-      "integrity": "sha512-D6gFiFA0RRLyUbvijN74DWAjXSFxWKaWP7mldxkVhyhAV3+SWA9HEJPHQ2c9soIeTFJqcSdFDGFgdqs1iUU2Hw==",
+      "version": "6.12.6",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
+      "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==",
       "dev": true,
       "requires": {
         "fast-deep-equal": "^3.1.1",
@@ -1071,9 +1071,9 @@
       }
     },
     "ansi-regex": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.0.tgz",
-      "integrity": "sha512-bY6fj56OUQ0hU1KjFNDQuJFezqKdrAyFdIevADiqrWHwSlbmBNMHp5ak2f40Pm8JTFyM2mqxkG6ngkHO11f/lg==",
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
+      "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
       "dev": true
     },
     "ansi-styles": {
@@ -1885,9 +1885,9 @@
       }
     },
     "minimist": {
-      "version": "1.2.5",
-      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz",
-      "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==",
+      "version": "1.2.6",
+      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.6.tgz",
+      "integrity": "sha512-Jsjnk4bw3YJqYzbdyBiNsPWHPfO++UGG749Cxs6peCu5Xg4nrena6OVxOYxrQTqww0Jmwt+Ref8rggumkTLz9Q==",
       "dev": true
     },
     "mkdirp": {
@@ -2001,9 +2001,9 @@
       "dev": true
     },
     "path-parse": {
-      "version": "1.0.6",
-      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.6.tgz",
-      "integrity": "sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw==",
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.7.tgz",
+      "integrity": "sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==",
       "dev": true
     },
     "prelude-ls": {
@@ -2273,9 +2273,9 @@
       },
       "dependencies": {
         "ansi-regex": {
-          "version": "4.1.0",
-          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
-          "integrity": "sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==",
+          "version": "4.1.1",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.1.tgz",
+          "integrity": "sha512-ILlv4k/3f6vfQ4OoP2AGvirOktlQ98ZEL1k9FaQjxa3L1abBgbuTDAdPOpvbGncC0BTVQrl+OM8xZGK6tWXt7g==",
           "dev": true
         }
       }
diff --git a/quiz/2_address-book/package-lock.json b/quiz/2_address-book/package-lock.json
index 7b9a26da..f85b554a 100644
--- a/quiz/2_address-book/package-lock.json
+++ b/quiz/2_address-book/package-lock.json
@@ -1042,9 +1042,9 @@
       "dev": true
     },
     "ajv": {
-      "version": "6.12.0",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.0.tgz",
-      "integrity": "sha512-D6gFiFA0RRLyUbvijN74DWAjXSFxWKaWP7mldxkVhyhAV3+SWA9HEJPHQ2c9soIeTFJqcSdFDGFgdqs1iUU2Hw==",
+      "version": "6.12.6",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
+      "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==",
       "dev": true,
       "requires": {
         "fast-deep-equal": "^3.1.1",
@@ -1071,9 +1071,9 @@
       }
     },
     "ansi-regex": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.0.tgz",
-      "integrity": "sha512-bY6fj56OUQ0hU1KjFNDQuJFezqKdrAyFdIevADiqrWHwSlbmBNMHp5ak2f40Pm8JTFyM2mqxkG6ngkHO11f/lg==",
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
+      "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
       "dev": true
     },
     "ansi-styles": {
@@ -1885,9 +1885,9 @@
       }
     },
     "minimist": {
-      "version": "1.2.5",
-      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz",
-      "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==",
+      "version": "1.2.6",
+      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.6.tgz",
+      "integrity": "sha512-Jsjnk4bw3YJqYzbdyBiNsPWHPfO++UGG749Cxs6peCu5Xg4nrena6OVxOYxrQTqww0Jmwt+Ref8rggumkTLz9Q==",
       "dev": true
     },
     "mkdirp": {
@@ -2001,9 +2001,9 @@
       "dev": true
     },
     "path-parse": {
-      "version": "1.0.6",
-      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.6.tgz",
-      "integrity": "sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw==",
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.7.tgz",
+      "integrity": "sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==",
       "dev": true
     },
     "prelude-ls": {
@@ -2273,9 +2273,9 @@
       },
       "dependencies": {
         "ansi-regex": {
-          "version": "4.1.0",
-          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
-          "integrity": "sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==",
+          "version": "4.1.1",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.1.tgz",
+          "integrity": "sha512-ILlv4k/3f6vfQ4OoP2AGvirOktlQ98ZEL1k9FaQjxa3L1abBgbuTDAdPOpvbGncC0BTVQrl+OM8xZGK6tWXt7g==",
           "dev": true
         }
       }