diff --git a/package-lock.json b/package-lock.json
index 3f188a1..a373e75 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3961,9 +3961,9 @@
       "dev": true
     },
     "eventsource": {
-      "version": "1.0.7",
-      "resolved": "http://npm.visionacademy.cn/eventsource/-/eventsource-1.0.7.tgz",
-      "integrity": "sha1-j7xyyT/NNAiAkLwKTmT0tc7m2NA=",
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/eventsource/-/eventsource-1.1.1.tgz",
+      "integrity": "sha512-qV5ZC0h7jYIAOhArFJgSfdyz6rALJyb270714o7ZtNnw2WSJ+eexhKtE0O8LYPRsHZHf2osHKZBxGPvm3kPkCA==",
       "dev": true,
       "requires": {
         "original": "^1.0.0"
diff --git a/yarn.lock b/yarn.lock
index 491a04c..600738a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1378,13 +1378,6 @@ axios@^0.18.0, axios@^0.18.1:
     follow-redirects "1.5.10"
     is-buffer "^2.0.2"
 
-axios@^0.18.1:
-  version "0.18.1"
-  resolved "https://registry.yarnpkg.com/axios/-/axios-0.18.1.tgz#ff3f0de2e7b5d180e757ad98000f1081b87bcea3"
-  dependencies:
-    follow-redirects "1.5.10"
-    is-buffer "^2.0.2"
-
 babel-extract-comments@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/babel-extract-comments/-/babel-extract-comments-1.0.0.tgz#0a2aedf81417ed391b85e18b4614e693a0351a21"
@@ -2805,8 +2798,8 @@ events@^3.0.0:
   resolved "https://registry.yarnpkg.com/events/-/events-3.0.0.tgz#9a0a0dfaf62893d92b875b8f2698ca4114973e88"
 
 eventsource@^1.0.7:
-  version "1.0.7"
-  resolved "https://registry.yarnpkg.com/eventsource/-/eventsource-1.0.7.tgz#8fbc72c93fcd34088090bc0a4e64f4b5cee6d8d0"
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/eventsource/-/eventsource-1.1.1.tgz#4544a35a57d7120fba4fa4c86cb4023b2c09df2f"
   dependencies:
     original "^1.0.0"
 
@@ -3054,7 +3047,6 @@ follow-redirects@1.5.10:
   dependencies:
     debug "=3.1.0"
 
-
 follow-redirects@^1.0.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.7.0.tgz#489ebc198dc0e7f64167bd23b03c4c19b5784c76"
@@ -5539,7 +5531,7 @@ prepend-http@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-2.0.0.tgz#e92434bfa5ea8c19f41cdfd401d741a3c819d897"
 
-prettier@1.19.1:
+prettier@1.19.1, prettier@^1.18.2:
   version "1.19.1"
   resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.19.1.tgz#f7d7f5ff8a9cd872a7be4ca142095956a60797cb"
 
@@ -5701,8 +5693,8 @@ querystring@0.2.0:
   resolved "https://registry.yarnpkg.com/querystring/-/querystring-0.2.0.tgz#b209849203bb25df820da756e747005878521620"
 
 querystringify@^2.1.1:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/querystringify/-/querystringify-2.1.1.tgz#60e5a5fd64a7f8bfa4d2ab2ed6fdf4c85bad154e"
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/querystringify/-/querystringify-2.2.0.tgz#3345941b4153cb9d082d8eee4cda2016a9aef7f6"
 
 randombytes@^2.0.0, randombytes@^2.0.1, randombytes@^2.0.5:
   version "2.1.0"
@@ -6875,8 +6867,8 @@ url-loader@^1.0.1:
     schema-utils "^1.0.0"
 
 url-parse@^1.4.3:
-  version "1.4.7"
-  resolved "https://registry.yarnpkg.com/url-parse/-/url-parse-1.4.7.tgz#a8a83535e8c00a316e403a5db4ac1b9b853ae278"
+  version "1.5.10"
+  resolved "https://registry.yarnpkg.com/url-parse/-/url-parse-1.5.10.tgz#9d3c2f736c1d75dd3bd2be507dcc111f1e2ea9c1"
   dependencies:
     querystringify "^2.1.1"
     requires-port "^1.0.0"
@@ -7057,6 +7049,10 @@ vuepress-html-webpack-plugin@^3.2.0:
     toposort "^1.0.0"
     util.promisify "1.0.0"
 
+vuepress-plugin-clean-urls@^1.1.1:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/vuepress-plugin-clean-urls/-/vuepress-plugin-clean-urls-1.1.2.tgz#40e3ef16a029dca71b23eb0523957a2abec9dc8d"
+
 vuepress-plugin-container@^2.0.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/vuepress-plugin-container/-/vuepress-plugin-container-2.1.2.tgz#688c1e5a9709a1b8658605bcaee580b3abb19d16"