diff --git a/package-lock.json b/package-lock.json
index 1176119..68e21da 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12195,57 +12195,57 @@
       "integrity": "sha512-V9iH6oW4K2oCSyeaDK+lIhz72FIz0Z3sWgnoSJQoVhfxR1Q+1VSXBRNFexXWHz8wqw3yHSyjFVzkyu+ZG0PeLw==",
       "dev": true,
       "requires": {
-        "autoprefixer": "8.3.0",
-        "buble": "0.19.3",
-        "buble-loader": "0.5.0",
-        "chalk": "2.4.0",
-        "chokidar": "2.0.3",
-        "commander": "2.15.1",
-        "connect-history-api-fallback": "1.5.0",
-        "copy-webpack-plugin": "4.5.1",
-        "css-loader": "0.28.11",
-        "diacritics": "1.3.0",
-        "es6-promise": "4.2.4",
-        "escape-html": "1.0.3",
-        "file-loader": "1.1.11",
-        "fs-extra": "5.0.0",
-        "globby": "8.0.1",
-        "js-yaml": "3.11.0",
-        "koa-connect": "2.0.1",
-        "koa-mount": "3.0.0",
-        "koa-static": "4.0.2",
-        "loader-utils": "1.1.0",
-        "lru-cache": "4.1.2",
-        "markdown-it": "8.4.1",
-        "markdown-it-anchor": "4.0.0",
-        "markdown-it-container": "2.0.0",
-        "markdown-it-emoji": "1.4.0",
-        "markdown-it-table-of-contents": "0.3.3",
-        "mini-css-extract-plugin": "0.4.0",
-        "nprogress": "0.2.0",
-        "object-assign": "4.1.1",
-        "optimize-css-assets-webpack-plugin": "4.0.0",
-        "portfinder": "1.0.13",
-        "postcss-loader": "2.1.4",
-        "prismjs": "1.14.0",
-        "register-service-worker": "1.2.0",
-        "semver": "5.5.0",
-        "stylus": "0.54.5",
-        "stylus-loader": "3.0.2",
-        "url-loader": "1.0.1",
-        "vue": "2.5.16",
-        "vue-loader": "15.0.0",
-        "vue-router": "3.0.1",
-        "vue-server-renderer": "2.5.16",
-        "vue-template-compiler": "2.5.16",
-        "vuepress-html-webpack-plugin": "3.2.0",
-        "webpack": "4.6.0",
-        "webpack-chain": "4.6.0",
-        "webpack-merge": "4.1.2",
-        "webpack-serve": "0.3.1",
-        "webpackbar": "2.6.1",
-        "workbox-build": "3.1.0",
-        "yaml-front-matter": "4.0.0"
+        "autoprefixer": "^8.2.0",
+        "buble": "^0.19.3",
+        "buble-loader": "^0.5.0",
+        "chalk": "^2.3.2",
+        "chokidar": "^2.0.3",
+        "commander": "^2.15.1",
+        "connect-history-api-fallback": "^1.5.0",
+        "copy-webpack-plugin": "^4.5.1",
+        "css-loader": "^0.28.11",
+        "diacritics": "^1.3.0",
+        "es6-promise": "^4.2.4",
+        "escape-html": "^1.0.3",
+        "file-loader": "^1.1.11",
+        "fs-extra": "^5.0.0",
+        "globby": "^8.0.1",
+        "js-yaml": "^3.11.0",
+        "koa-connect": "^2.0.1",
+        "koa-mount": "^3.0.0",
+        "koa-static": "^4.0.2",
+        "loader-utils": "^1.1.0",
+        "lru-cache": "^4.1.2",
+        "markdown-it": "^8.4.1",
+        "markdown-it-anchor": "^4.0.0",
+        "markdown-it-container": "^2.0.0",
+        "markdown-it-emoji": "^1.4.0",
+        "markdown-it-table-of-contents": "^0.3.3",
+        "mini-css-extract-plugin": "^0.4.0",
+        "nprogress": "^0.2.0",
+        "object-assign": "^4.1.1",
+        "optimize-css-assets-webpack-plugin": "^4.0.0",
+        "portfinder": "^1.0.13",
+        "postcss-loader": "^2.1.3",
+        "prismjs": "^1.13.0",
+        "register-service-worker": "^1.2.0",
+        "semver": "^5.5.0",
+        "stylus": "^0.54.5",
+        "stylus-loader": "^3.0.2",
+        "url-loader": "^1.0.1",
+        "vue": "^2.5.16",
+        "vue-loader": "^15.0.0-rc.1",
+        "vue-router": "^3.0.1",
+        "vue-server-renderer": "^2.5.16",
+        "vue-template-compiler": "^2.5.16",
+        "vuepress-html-webpack-plugin": "^3.2.0",
+        "webpack": "^4.5.0",
+        "webpack-chain": "^4.6.0",
+        "webpack-merge": "^4.1.2",
+        "webpack-serve": "^0.3.1",
+        "webpackbar": "^2.6.1",
+        "workbox-build": "^3.1.0",
+        "yaml-front-matter": "^4.0.0"
       }
     },
     "vuepress-html-webpack-plugin": {