Dev: Update dependencies

package.json

@@ -36,7 +36,7 @@
   },
   "homepage": "http://eruda.liriliri.io/",
   "devDependencies": {
-    "autoprefixer": "^6.3.3",
+    "autoprefixer": "^7.1.2",
     "babel-core": "^6.6.5",
     "babel-loader": "^7.0.0",
     "babel-plugin-transform-runtime": "^6.8.0",
@@ -58,8 +58,8 @@
     "modernizr": "^3.3.1",
     "node-sass": "^4.5.0",
     "postcss-class-prefix": "^0.3.0",
-    "postcss-loader": "^1.3.3",
+    "postcss-loader": "^2.0.6",
     "sass-loader": "^6.0.3",
-    "webpack": "^2.2.1"
+    "webpack": "^3.5.4"
   }
 }