diff --git a/docker-compose.yml b/docker-compose.yml
index 2480311a2..5827a5cc6 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -5,9 +5,9 @@ services:
     stdin_open: true
     tty: true
     working_dir: /mermaid
-    mem_limit: '2G'
+    mem_limit: '4G'
     environment:
-      - NODE_OPTIONS=--max_old_space_size=2048
+      - NODE_OPTIONS=--max_old_space_size=4096
     volumes:
       - ./:/mermaid
       - root_cache:/root/.cache