diff --git a/package.json b/package.json
index 17bf5ad..d6f3ef0 100644
--- a/package.json
+++ b/package.json
@@ -30,6 +30,7 @@
   },
   "homepage": "https://github.com/fastify/fastify-cookie#readme",
   "devDependencies": {
+    "@types/node": "^11.9.3",
     "fastify": "^1.13.4",
     "pre-commit": "^1.2.2",
     "request": "^2.83.0",