diff --git a/package.json b/package.json
index 78f21b6..984a797 100644
--- a/package.json
+++ b/package.json
@@ -22,6 +22,7 @@
   "devDependencies": {
     "@types/chai": "^4.2.15",
     "@types/mocha": "^8.2.1",
+    "@types/node": "^10.17.60",
     "@typescript-eslint/eslint-plugin": "^4.15.1",
     "@typescript-eslint/parser": "^4.15.1",
     "chai": "^4.2.0",