update de dependencias

package.json

@@ -15,28 +15,28 @@
     "build:prod": "webpack -p"
   },
   "devDependencies": {
-    "@babel/core": "^7.2.0",
-    "@babel/plugin-proposal-class-properties": "^7.2.1",
-    "@babel/preset-env": "^7.2.0",
+    "@babel/core": "^7.4.0",
+    "@babel/plugin-proposal-class-properties": "^7.4.0",
+    "@babel/preset-env": "^7.4.2",
     "@babel/preset-react": "^7.0.0",
-    "babel-loader": "^8.0.4",
-    "css-loader": "^2.0.0",
-    "file-loader": "^2.0.0",
+    "babel-loader": "^8.0.5",
+    "css-loader": "^2.1.1",
+    "file-loader": "^3.0.1",
     "json-loader": "^0.5.7",
-    "raw-loader": "^1.0.0",
-    "react-hot-loader": "^4.6.0",
+    "raw-loader": "^2.0.0",
+    "react-hot-loader": "^4.8.0",
     "style-loader": "^0.23.1",
     "url-loader": "^1.1.2",
-    "webpack": "^4.27.1",
-    "webpack-cli": "^3.1.2",
-    "webpack-dev-server": "^3.1.10"
+    "webpack": "^4.29.6",
+    "webpack-cli": "^3.3.0",
+    "webpack-dev-server": "^3.2.1"
   },
   "dependencies": {
     "classnames": "^2.2.6",
-    "dotenv": "^6.2.0",
-    "dotenv-webpack": "^1.5.7",
-    "prop-types": "^15.6.2",
-    "react": "16.7.0-alpha.2",
-    "react-dom": "16.7.0-alpha.2"
+    "dotenv": "^7.0.0",
+    "dotenv-webpack": "^1.7.0",
+    "prop-types": "^15.7.2",
+    "react": "16.8.6",
+    "react-dom": "16.8.6"
   }
 }