diff --git a/package-lock.json b/package-lock.json
index 3f188a1..f8a57f1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1606,9 +1606,9 @@
       }
     },
     "acorn": {
-      "version": "6.4.0",
-      "resolved": "http://npm.visionacademy.cn/acorn/-/acorn-6.4.0.tgz",
-      "integrity": "sha1-tlnS/7r6JLr12xzbsslKmD7NJ4Q=",
+      "version": "6.4.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
+      "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA==",
       "dev": true
     },
     "agentkeepalive": {
diff --git a/yarn.lock b/yarn.lock
index 491a04c..855f636 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1120,8 +1120,8 @@ acorn-dynamic-import@^4.0.0:
   resolved "https://registry.yarnpkg.com/acorn-dynamic-import/-/acorn-dynamic-import-4.0.0.tgz#482210140582a36b83c3e342e1cfebcaa9240948"
 
 acorn@^6.0.5:
-  version "6.1.1"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.1.1.tgz#7d25ae05bb8ad1f9b699108e1094ecd7884adc1f"
+  version "6.4.1"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.4.1.tgz#531e58ba3f51b9dacb9a6646ca4debf5b14ca474"
 
 agentkeepalive@^2.2.0:
   version "2.2.0"
@@ -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"
@@ -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"
 
@@ -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 "1.1.1"
+  resolved "https://registry.yarnpkg.com/vuepress-plugin-clean-urls/-/vuepress-plugin-clean-urls-1.1.1.tgz#593f47be643c33c34413ba408e8bee31aaf534bd"
+
 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"