diff --git a/test/fixtures/scenario_manager.js b/test/fixtures/scenario_manager.js
index a1822a349749e2..d4f071358d369e 100644
--- a/test/fixtures/scenario_manager.js
+++ b/test/fixtures/scenario_manager.js
@@ -10,6 +10,7 @@ function ScenarioManager(server) {
   this.client = new elasticsearch.Client({
     host: server,
     requestTimeout: 300000,
+    apiVersion: 'master',
     defer: function () {
       return Promise.defer();
     }