chore(package): Update dependencies

package.json

@@ -31,10 +31,10 @@
     "vue": "^2.5.16"
   },
   "devDependencies": {
-    "@babel/core": "^7.0.0-beta.51",
-    "@babel/plugin-proposal-object-rest-spread": "^7.0.0-beta.51",
-    "@babel/plugin-transform-object-assign": "^7.0.0-beta.51",
-    "@babel/preset-env": "^7.0.0-beta.51",
+    "@babel/core": "^7.0.0-beta.52",
+    "@babel/plugin-proposal-object-rest-spread": "^7.0.0-beta.52",
+    "@babel/plugin-transform-object-assign": "^7.0.0-beta.52",
+    "@babel/preset-env": "^7.0.0-beta.52",
     "@vue/test-utils": "^1.0.0-beta.20",
     "babel-core": "^7.0.0-bridge.0",
     "babel-eslint": "^8.2.5",
@@ -57,11 +57,11 @@
     "file-loader": "^1.1.11",
     "html-loader": "^0.5.5",
     "html-webpack-plugin": "^3.2.0",
-    "jest": "^23.2.0",
+    "jest": "^23.3.0",
     "jest-serializer-vue": "^2.0.2",
     "mini-css-extract-plugin": "^0.4.1",
     "mutationobserver-shim": "^0.3.2",
-    "node-sass": "4.9.0",
+    "node-sass": "4.9.1",
     "normalize.css": "^8.0.0",
     "optimize-css-assets-webpack-plugin": "^4.0.3",
     "postcss": "^6.0.23",
@@ -75,7 +75,7 @@
     "vue-loader": "^15.2.4",
     "vue-template-compiler": "^2.5.16",
     "vuepress": "^0.10.2",
-    "webpack": "^4.14.0",
+    "webpack": "^4.15.1",
     "webpack-cli": "^3.0.8",
     "webpack-dev-server": "^3.1.4",
     "webpack-merge": "^4.1.3"