diff --git a/package.json b/package.json
index 5bee192..66699d2 100644
--- a/package.json
+++ b/package.json
@@ -48,6 +48,7 @@
     "eslint": "^6.8.0",
     "eslint-config-prettier": "^6.10.0",
     "jest": "^25.1.0",
+    "node-notifier": "9.0.1",
     "prettier": "^1.19.1",
     "ts-jest": "^25.1.0",
     "ts-node": "8.6.2",