build(npm): upgrade dependencies

package.json

@@ -23,28 +23,30 @@
     "node": ">=8.9.3"
   },
   "dependencies": {
-    "body-parser": "~1.15.2",
+    "body-parser": "^1.18.2",
     "contentful": "^5.1.2",
     "cookie-parser": "~1.4.3",
-    "dotenv": "^4.0.0",
-    "execa": "^0.8.0",
-    "express": "~4.14.0",
-    "helmet": "^3.9.0",
-    "lodash": "^4.17.4",
-    "marked": "^0.3.6",
-    "morgan": "~1.7.0",
+    "dotenv": "^5.0.0",
+    "execa": "^0.9.0",
+    "express": "^4.16.2",
+    "helmet": "^3.11.0",
+    "lodash": "^4.17.5",
+    "marked": "^0.3.16",
+    "morgan": "^1.9.0",
     "pug": "~2.0.0-beta6"
   },
   "devDependencies": {
     "cheerio": "^1.0.0-rc.2",
     "cookie": "^0.3.1",
-    "eslint": "^3.16.0",
-    "eslint-config-standard": "^6.2.1",
-    "eslint-plugin-promise": "^3.4.2",
-    "eslint-plugin-standard": "^2.0.1",
-    "jest": "^21.2.1",
-    "nodemon": "^1.12.1",
+    "eslint": "^4.18.1",
+    "eslint-config-standard": "^11.0.0",
+    "eslint-plugin-import": "^2.8.0",
+    "eslint-plugin-node": "^6.0.0",
+    "eslint-plugin-promise": "^3.6.0",
+    "eslint-plugin-standard": "^3.0.1",
+    "jest": "^22.4.0",
+    "nodemon": "^1.15.1",
     "supertest": "^3.0.0",
-    "yargs": "^10.0.3"
+    "yargs": "^11.0.0"
   }
 }