diff --git a/docker-compose.yml b/docker-compose.yml
index d3d3819..c786b85 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -36,7 +36,7 @@ services:
       - cluster.name=parsedmarc
       - discovery.type=single-node
       - bootstrap.memory_lock=true
-      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
+      - "ES_JAVA_OPTS=-Xms1g -Xmx1g"
       - xpack.security.enabled=false # required to prevent warnings in kibana dashboard. Security is not required as we're only operating docker-internally
     ulimits:
       memlock: