Update dependecies in order to fix vulnarabilities

package.json

@@ -31,22 +31,22 @@
     "@babel/polyfill": "^7.2.5",
     "@babel/preset-env": "^7.2.3",
     "@babel/register": "^7.0.0",
-    "ava": "^1.1.0",
+    "ava": "^1.4.1",
     "babel-eslint": "^10.0.1",
     "babel-loader": "^8.0.5",
     "babel-plugin-add-module-exports": "^1.0.0",
     "babel-plugin-istanbul": "^5.1.1",
     "coveralls": "^3.0.2",
     "docdash": "^1.0.0",
-    "eslint": "^5.4.0",
+    "eslint": "^5.16.0",
     "eslint-config-airbnb-base": "^13.1.0",
     "eslint-plugin-ava": "^5.1.0",
     "eslint-plugin-import": "^2.14.0",
     "gh-pages": "^2.0.1",
     "jsdoc": "^3.5.5",
-    "nyc": "^13.2.0",
+    "nyc": "^13.3.0",
     "sinon": "^6.1.5",
-    "testem": "^2.9.3",
+    "testem": "^2.15.1",
     "webpack": "^4.28.4",
     "webpack-cli": "^3.2.1",
     "yamljs": "^0.3.0"