diff --git a/src/cli/cluster/worker.ts b/src/cli/cluster/worker.ts
index 7dc44c08e08681..ebcf8f3fe5e3d2 100644
--- a/src/cli/cluster/worker.ts
+++ b/src/cli/cluster/worker.ts
@@ -86,7 +86,7 @@ export class Worker extends EventEmitter {
     this.processBinder = new BinderFor(process);
 
     this.env = {
-      NODE_OPTIONS: process.env.NODE_OPTIONS || '--max-old-space-size=4000',
+      NODE_OPTIONS: process.env.NODE_OPTIONS || '--max-old-space-size=4096',
       kbnWorkerType: this.type,
       kbnWorkerArgv: JSON.stringify([...(opts.baseArgv || baseArgv), ...(opts.argv || [])]),
     };