chore(package): update dependencies

package.json

@@ -36,15 +36,15 @@
     "babel-preset-env": "^1.7.0",
     "babel-register": "^6.26.0",
     "coveralls": "^3.0.2",
-    "docdash": "^0.4.0",
-    "eslint": "^4.19.1",
-    "eslint-config-airbnb-base": "^12.1.0",
-    "eslint-plugin-ava": "^4.5.1",
+    "docdash": "^1.0.0",
+    "eslint": "^5.4.0",
+    "eslint-config-airbnb-base": "^13.1.0",
+    "eslint-plugin-ava": "^5.1.0",
     "eslint-plugin-import": "^2.13.0",
     "jsdoc": "^3.5.5",
     "nyc": "^12.0.2",
-    "sinon": "^2.4.1",
-    "testem": "^1.18.5",
+    "sinon": "^6.1.5",
+    "testem": "^2.9.3",
     "webpack": "^4.15.1",
     "webpack-cli": "^3.0.8",
     "yamljs": "^0.3.0"