diff --git a/docker-compose.yml b/docker-compose.yml
index d8a6121..2f5e8c5 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -16,7 +16,7 @@ services:
         source: .
         target: /timdex
   elasticsearch:
-    image: docker.elastic.co/elasticsearch/elasticsearch:6.8.4
+    image: docker.elastic.co/elasticsearch/elasticsearch:9.0.1@sha256:9244a573c48bc120c8ac4daf61d48dcda48db2b25fd1b3c4cbeb01aa175a8495
     environment:
       - discovery.type=single-node
       - xpack.security.enabled=false