diff --git a/docker-compose.yml b/docker-compose.yml
index 4d77506..09295fb 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -41,6 +41,7 @@ services:
     environment:
       cluster.name: elasticsearch
       discovery.type: single-node
+      ES_JAVA_OPTS: -Xms512m -Xmx512m
     logging:
       driver: "json-file"
       options: