diff --git a/elasticsearch/server/cluster.yml b/elasticsearch/server/cluster.yml
index 94b6d85..1bbe404 100644
--- a/elasticsearch/server/cluster.yml
+++ b/elasticsearch/server/cluster.yml
@@ -6,7 +6,7 @@
     java_environment_version: "8"
     java_environment_platform: openjdk
     elasticsearch_cluster_name: elasticsearch
-    elasticsearch_version: 2
+    elasticsearch_version: 5
   linux:
     system:
       sysctl: