diff --git a/iot/mqtt_example/package.json b/iot/mqtt_example/package.json
index 088767531a..ef6bf76e9f 100644
--- a/iot/mqtt_example/package.json
+++ b/iot/mqtt_example/package.json
@@ -19,7 +19,7 @@
   "dependencies": {
     "@google-cloud/iot": "^2.0.0",
     "jsonwebtoken": "^8.5.0",
-    "mqtt": "^4.0.0",
+    "mqtt": "^5.3.5",
     "yargs": "^15.0.0"
   },
   "devDependencies": {