diff --git a/package.json b/package.json
index 08ad538..5cd7a75 100644
--- a/package.json
+++ b/package.json
@@ -73,5 +73,8 @@
     "type": "opencollective",
     "url": "https://opencollective.com/bundlesize",
     "logo": "https://opencollective.com/opencollective/logo.txt"
+  },
+  "engines": {
+    "node": ">=8"
   }
 }