diff --git a/docker-compose.yml b/docker-compose.yml
index c5c2360..bc4254b 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -186,6 +186,9 @@ configs:
           }
         ]
       }
+      mqtt {
+        max_packet_size: 128MB
+      }
       listeners {
         ssl {
           default {