Update dependencies

package.json

@@ -23,43 +23,42 @@
     "windsurfing"
   ],
   "dependencies": {
-    "algoliasearch": "~3.27.0",
-    "autoprefixer": "~8.3.0",
+    "algoliasearch": "3",
+    "autoprefixer": "9",
     "babel-plugin-module-resolver": "~3.1.1",
-    "babel-plugin-styled-components": "~1.5.1",
-    "babel-plugin-transform-define": "~1.3.0",
-    "babel-plugin-wrap-in-js": "~1.1.1",
+    "babel-plugin-styled-components": "1",
+    "babel-plugin-transform-define": "1",
+    "babel-plugin-wrap-in-js": "1",
     "breakpoint-sass": "~2.7.1",
     "colour-me-life": "~2.0.0",
-    "config": "~1.30.0",
-    "cssnano": "~3.10.0",
-    "express": "~4.16.3",
-    "glob": "~7.1.2",
-    "js-yaml": "~3.11.0",
+    "config": "~2.0.1",
+    "cssnano": "~4.1.7",
+    "glob": "~7.1.3",
+    "js-yaml": "~3.12.0",
     "next": "7",
-    "node-sass": "~4.8.3",
+    "node-sass": "4",
     "normalize.css": "~8.0.0",
     "nprogress": "~0.2.0",
     "palx": "~1.0.3",
     "postcss-easy-import": "~3.0.0",
-    "postcss-focus": "~3.0.0",
-    "postcss-loader": "~2.1.4",
+    "postcss-focus": "~4.0.0",
+    "postcss-loader": "~3.0.0",
     "progress-arc-component": "~2.6.0",
-    "prop-types": "~15.6.1",
-    "qs": "~6.5.1",
+    "prop-types": "15",
+    "qs": "6",
     "raw-loader": "~0.5.1",
-    "react": "~16.3.2",
-    "react-dom": "~16.3.2",
-    "react-feather": "~1.1.0",
-    "react-headroom": "~2.2.2",
+    "react": "16",
+    "react-dom": "16",
+    "react-feather": "~1.1.4",
+    "react-headroom": "~2.2.4",
     "react-infinite-scroll-component": "3",
-    "react-instantsearch": "~5.0.3",
+    "react-instantsearch": "~5.3.2",
     "react-progress-bar.js": "~0.2.3",
     "react-timeago": "~4.1.9",
-    "rebass": "~2.0.0-0",
-    "sass-loader": "~7.0.1",
-    "styled-components": "~3.2.6",
-    "styled-system": "2"
+    "rebass": "2",
+    "sass-loader": "~7.1.0",
+    "styled-components": "3",
+    "styled-system": "3"
   },
   "devDependencies": {
     "babel-eslint": "latest",
@@ -88,14 +87,14 @@
     "build": "NODE_ENV=production next build",
     "clean": "rm -rf node_modules && rm -rf .next",
     "dev": "next",
+    "heroku-postbuild": "npm run build",
     "lint": "standard-markdown && standard",
     "predev": "rm -rf node_modules/.cache/babel-loader",
-    "prestart": "npm run build",
     "pretty": "prettier-standard --single-quote {util,pages,config,components}/**/*.js",
     "start": "NODE_ENV=production node server.js",
     "test": "exit 0"
   },
-  "private": "true",
+  "private": true,
   "license": "MIT",
   "husky": {
     "hooks": {