diff --git a/package-lock.json b/package-lock.json
index 3f188a1..241a0c6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8458,9 +8458,9 @@
       "dev": true
     },
     "prismjs": {
-      "version": "1.17.1",
-      "resolved": "http://npm.visionacademy.cn/prismjs/-/prismjs-1.17.1.tgz",
-      "integrity": "sha1-5mn8vUzdhzw1ECiBwzsU0NaFGb4=",
+      "version": "1.23.0",
+      "resolved": "https://registry.npmjs.org/prismjs/-/prismjs-1.23.0.tgz",
+      "integrity": "sha512-c29LVsqOaLbBHuIbsTxaKENh1N2EQBOHaWv7gkHN4dgRbxSREqDnDbtFJYdpPauS4YCplMSNCABQ6Eeor69bAA==",
       "dev": true,
       "requires": {
         "clipboard": "^2.0.0"
diff --git a/yarn.lock b/yarn.lock
index 491a04c..19d1d88 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"
@@ -1886,8 +1879,8 @@ clean-css@4.2.x:
     source-map "~0.6.0"
 
 clipboard@^2.0.0:
-  version "2.0.4"
-  resolved "https://registry.yarnpkg.com/clipboard/-/clipboard-2.0.4.tgz#836dafd66cf0fea5d71ce5d5b0bf6e958009112d"
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/clipboard/-/clipboard-2.0.6.tgz#52921296eec0fdf77ead1749421b21c968647376"
   dependencies:
     good-listener "^1.2.2"
     select "^1.1.2"
@@ -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"
 
@@ -5570,8 +5562,8 @@ pretty-time@^1.1.0:
   resolved "https://registry.yarnpkg.com/pretty-time/-/pretty-time-1.1.0.tgz#ffb7429afabb8535c346a34e41873adf3d74dd0e"
 
 prismjs@^1.13.0:
-  version "1.16.0"
-  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.16.0.tgz#406eb2c8aacb0f5f0f1167930cb83835d10a4308"
+  version "1.23.0"
+  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.23.0.tgz#d3b3967f7d72440690497652a9d40ff046067f33"
   optionalDependencies:
     clipboard "^2.0.0"
 
@@ -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"