diff --git a/main.py b/main.py
index 71e0a8a..dbb1d72 100644
--- a/main.py
+++ b/main.py
@@ -34,7 +34,7 @@
         bind_ip=config.http_ip,
         bind_port=config.http_port,
         state=config,
-        max_upload=2 * 1024 * 1024,
+        max_upload=4 * 1024 * 1024,  # 4MB ≃ 20,000 iptables entries from a client
     )
     loop.create_task(httpserver.loop())
     while True: