diff --git a/packages/google-cloud-monitoring/package.json b/packages/google-cloud-monitoring/package.json
index d80aa854eea..bd93a06bbb2 100644
--- a/packages/google-cloud-monitoring/package.json
+++ b/packages/google-cloud-monitoring/package.json
@@ -65,6 +65,6 @@
   },
   "license": "Apache-2.0",
   "engines": {
-    "node": ">=0.12.0"
+    "node": ">=4.0.0"
   }
 }