diff --git a/test/parallel/test-cluster-worker-constructor.js b/test/parallel/test-cluster-worker-constructor.js
index f3ae7db731..770d45c6a9 100644
--- a/test/parallel/test-cluster-worker-constructor.js
+++ b/test/parallel/test-cluster-worker-constructor.js
@@ -3,9 +3,9 @@
 // validates correct behavior of the cluster.Worker constructor
 
 require('../common');
-var assert = require('assert');
-var cluster = require('cluster');
-var worker;
+const assert = require('assert');
+const cluster = require('cluster');
+let worker;
 
 worker = new cluster.Worker();
 assert.strictEqual(worker.suicide, undefined);