diff --git a/frontend/course-app/package-lock.json b/frontend/course-app/package-lock.json
index 7379234..e797b53 100644
--- a/frontend/course-app/package-lock.json
+++ b/frontend/course-app/package-lock.json
@@ -4898,9 +4898,9 @@
       "dev": true
     },
     "decode-uri-component": {
-      "version": "0.2.0",
-      "resolved": "https://registry.npmjs.org/decode-uri-component/-/decode-uri-component-0.2.0.tgz",
-      "integrity": "sha1-6zkTMzRYd1y4TNGh+uBiEGu4dUU=",
+      "version": "0.2.2",
+      "resolved": "https://registry.npmjs.org/decode-uri-component/-/decode-uri-component-0.2.2.tgz",
+      "integrity": "sha512-FqUYQ+8o158GyGTrMFJms9qh3CqTKvAqgqsTnkLI8sKu0028orqBhxNMFkFen0zGyg6epACD32pjVk58ngIErQ==",
       "dev": true
     },
     "dedent": {
diff --git a/frontend/course-app/yarn.lock b/frontend/course-app/yarn.lock
index 5622e7c..b5e0028 100644
--- a/frontend/course-app/yarn.lock
+++ b/frontend/course-app/yarn.lock
@@ -1759,7 +1759,7 @@ aws4@^1.8.0:
 
 axios@^0.19.2:
   version "0.19.2"
-  resolved "http://r.cnpmjs.org/axios/download/axios-0.19.2.tgz#3ea36c5d8818d0d5f8a8a97a6d36b86cdc00cb27"
+  resolved "https://r.cnpmjs.org/axios/download/axios-0.19.2.tgz#3ea36c5d8818d0d5f8a8a97a6d36b86cdc00cb27"
   integrity sha1-PqNsXYgY0NX4qKl6bTa4bNwAyyc=
   dependencies:
     follow-redirects "1.5.10"
@@ -2505,7 +2505,7 @@ combined-stream@^1.0.6, combined-stream@~1.0.6:
 
 commander@*:
   version "5.1.0"
-  resolved "http://r.cnpmjs.org/commander/download/commander-5.1.0.tgz#46abbd1652f8e059bddaef99bbdcb2ad9cf179ae"
+  resolved "https://r.cnpmjs.org/commander/download/commander-5.1.0.tgz#46abbd1652f8e059bddaef99bbdcb2ad9cf179ae"
   integrity sha1-Rqu9FlL44Fm92u+Zu9yyrZzxea4=
 
 commander@2.17.x:
@@ -3068,7 +3068,7 @@ debug@3.2.6, debug@^3.0.0, debug@^3.1.1, debug@^3.2.5:
 
 debug@=3.1.0:
   version "3.1.0"
-  resolved "http://r.cnpmjs.org/debug/download/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
+  resolved "https://r.cnpmjs.org/debug/download/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
   integrity sha1-W7WgZyYotkFJVmuhaBnmFRjGcmE=
   dependencies:
     ms "2.0.0"
@@ -3086,9 +3086,9 @@ decamelize@^1.2.0:
   integrity sha1-9lNNFRSCabIDUue+4m9QH5oZEpA=
 
 decode-uri-component@^0.2.0:
-  version "0.2.0"
-  resolved "https://registry.npm.taobao.org/decode-uri-component/download/decode-uri-component-0.2.0.tgz#eb3913333458775cb84cd1a1fae062106bb87545"
-  integrity sha1-6zkTMzRYd1y4TNGh+uBiEGu4dUU=
+  version "0.2.2"
+  resolved "https://registry.yarnpkg.com/decode-uri-component/-/decode-uri-component-0.2.2.tgz#e69dbe25d37941171dd540e024c444cd5188e1e9"
+  integrity sha512-FqUYQ+8o158GyGTrMFJms9qh3CqTKvAqgqsTnkLI8sKu0028orqBhxNMFkFen0zGyg6epACD32pjVk58ngIErQ==
 
 dedent@0.7.0, dedent@^0.7.0:
   version "0.7.0"
@@ -4244,7 +4244,7 @@ flush-write-stream@^1.0.0:
 
 follow-redirects@1.5.10:
   version "1.5.10"
-  resolved "http://r.cnpmjs.org/follow-redirects/download/follow-redirects-1.5.10.tgz#7b7a9f9aea2fdff36786a94ff643ed07f4ff5e2a"
+  resolved "https://r.cnpmjs.org/follow-redirects/download/follow-redirects-1.5.10.tgz#7b7a9f9aea2fdff36786a94ff643ed07f4ff5e2a"
   integrity sha1-e3qfmuov3/NnhqlP9kPtB/T/Xio=
   dependencies:
     debug "=3.1.0"
@@ -6279,7 +6279,7 @@ mochapack@^1.1.13:
 
 mockjs@^1.1.0:
   version "1.1.0"
-  resolved "http://r.cnpmjs.org/mockjs/download/mockjs-1.1.0.tgz#e6a0c378e91906dbaff20911cc0273b3c7d75b06"
+  resolved "https://r.cnpmjs.org/mockjs/download/mockjs-1.1.0.tgz#e6a0c378e91906dbaff20911cc0273b3c7d75b06"
   integrity sha1-5qDDeOkZBtuv8gkRzAJzs8fXWwY=
   dependencies:
     commander "*"
@@ -9325,7 +9325,7 @@ vm-browserify@^1.0.1:
 
 vue-axios@^2.1.5:
   version "2.1.5"
-  resolved "http://r.cnpmjs.org/vue-axios/download/vue-axios-2.1.5.tgz#1af4bf1218ed71309c76afb38d0f683e312c24a7"
+  resolved "https://r.cnpmjs.org/vue-axios/download/vue-axios-2.1.5.tgz#1af4bf1218ed71309c76afb38d0f683e312c24a7"
   integrity sha1-GvS/EhjtcTCcdq+zjQ9oPjEsJKc=
 
 vue-cli-plugin-element@~1.0.1: