diff --git a/logstash/defaults/main.yml b/logstash/defaults/main.yml
index cd16db24..461a03c7 100644
--- a/logstash/defaults/main.yml
+++ b/logstash/defaults/main.yml
@@ -1,5 +1,5 @@
 ---
-elastic_stack_version: "5.x"
+elastic_stack_version: "6.x"
 
 logstash_jvm_xms: 256m
 logstash_jvm_xmx: 1g