diff --git a/docker/environment b/docker/environment
index 4fc64eb..7ffcebe 100644
--- a/docker/environment
+++ b/docker/environment
@@ -38,7 +38,7 @@ druid_metadata_storage_connector_password=FoolishPassword
 
 druid_coordinator_balancer_strategy=cachingCost
 
-druid_indexer_runner_javaOptsArray=["-server", "-Xmx1g", "-Xms1g", "-XX:MaxDirectMemorySize=1g", "-Duser.timezone=UTC", "-Dfile.encoding=UTF-8", "-Djava.util.logging.manager=org.apache.logging.log4j.jul.LogManager"]
+druid_indexer_runner_javaOptsArray=["-server", "-Xmx1g", "-Xms1g", "-XX:MaxDirectMemorySize=512m", "-Duser.timezone=UTC", "-Dfile.encoding=UTF-8", "-Djava.util.logging.manager=org.apache.logging.log4j.jul.LogManager"]
 druid_indexer_fork_property_druid_processing_buffer_sizeBytes=256MiB
 
 druid_storage_type=local