diff --git a/docker-compose.yml b/docker-compose.yml
index be1497a4..6e82f010 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -45,7 +45,7 @@ services:
     restart: unless-stopped
     environment:
       - "ELASTIC_PASSWORD=verysecret"       # matching Elasticsearch password
-      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
+      - "ES_JAVA_OPTS=-Xms1g -Xmx1g"
       - "xpack.security.enabled=true"
       - "discovery.type=single-node"
       - "path.repo=/usr/share/elasticsearch/data/snapshot"