diff --git a/containers/zammad-elasticsearch/Dockerfile b/containers/zammad-elasticsearch/Dockerfile
index a4ea30c..3a1024a 100644
--- a/containers/zammad-elasticsearch/Dockerfile
+++ b/containers/zammad-elasticsearch/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker.elastic.co/elasticsearch/elasticsearch:7.17.3
+FROM docker.elastic.co/elasticsearch/elasticsearch:8.3.3
 ARG BUILD_DATE
 
 LABEL org.label-schema.build-date="$BUILD_DATE" \