diff --git a/containers/zammad-elasticsearch/Dockerfile b/containers/zammad-elasticsearch/Dockerfile
index b688f95..9df8767 100644
--- a/containers/zammad-elasticsearch/Dockerfile
+++ b/containers/zammad-elasticsearch/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker.elastic.co/elasticsearch/elasticsearch:7.16.2
+FROM docker.elastic.co/elasticsearch/elasticsearch:7.16.3
 ARG BUILD_DATE
 
 LABEL org.label-schema.build-date="$BUILD_DATE" \