diff --git a/containers/zammad-elasticsearch/Dockerfile b/containers/zammad-elasticsearch/Dockerfile
index c009982..631de42 100644
--- a/containers/zammad-elasticsearch/Dockerfile
+++ b/containers/zammad-elasticsearch/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker.elastic.co/elasticsearch/elasticsearch:5.5.0
+FROM docker.elastic.co/elasticsearch/elasticsearch:5.5.3
 MAINTAINER Zammad <info@zammad.org>
 ARG BUILD_DATE