diff --git a/elasticsearch/defaults/main.yml b/elasticsearch/defaults/main.yml
index 02dd0d5a..8b5dd20e 100644
--- a/elasticsearch/defaults/main.yml
+++ b/elasticsearch/defaults/main.yml
@@ -1,5 +1,5 @@
 ---
-elastic_stack_version: "5.x"
+elastic_stack_version: "6.x"
 
 elasticsearch_cluster_name: Null
 elasticsearch_node_name: "${HOSTNAME}"