run `npm update`

package.json

@@ -21,22 +21,22 @@
   "author": "",
   "license": "MIT",
   "devDependencies": {
-    "@babel/core": "^7.2.2",
-    "@babel/plugin-proposal-class-properties": "^7.3.0",
-    "@babel/preset-env": "^7.3.1",
+    "@babel/core": "^7.5.0",
+    "@babel/plugin-proposal-class-properties": "^7.5.0",
+    "@babel/preset-env": "^7.5.0",
     "@babel/preset-flow": "^7.0.0",
     "chai": "^4.2.0",
-    "eslint": "^5.14.1",
-    "eslint-plugin-github": "^1.9.0",
+    "eslint": "^5.16.0",
+    "eslint-plugin-github": "^1.10.0",
     "flow-bin": "^0.93.0",
-    "karma": "^4.0.0",
+    "karma": "^4.1.0",
     "karma-chai": "^0.1.0",
     "karma-chrome-launcher": "^2.2.0",
     "karma-mocha": "^1.3.0",
     "karma-mocha-reporter": "^2.2.5",
     "mocha": "^5.2.0",
-    "rollup": "^1.1.2",
-    "rollup-plugin-babel": "^4.3.2"
+    "rollup": "^1.16.6",
+    "rollup-plugin-babel": "^4.3.3"
   },
   "dependencies": {},
   "eslintIgnore": [