diff --git a/docker-compose.yml b/docker-compose.yml
index 4451238d..73881519 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -63,7 +63,7 @@ services:
     container_name: shuffle-opensearch
     environment:
       - bootstrap.memory_lock=true
-      - "OPENSEARCH_JAVA_OPTS=-Xms1024m -Xmx1024m" # minimum and maximum Java heap size, recommend setting both to 50% of system RAM
+      - "OPENSEARCH_JAVA_OPTS=-Xms2048m -Xmx2048m" # minimum and maximum Java heap size, recommend setting both to 50% of system RAM
       - cluster.initial_master_nodes=shuffle-opensearch
       - cluster.routing.allocation.disk.threshold_enabled=false
       - cluster.name=shuffle-cluster