diff --git a/mqtt/rumqttd.toml b/mqtt/rumqttd.toml
index ecc741e..d986182 100644
--- a/mqtt/rumqttd.toml
+++ b/mqtt/rumqttd.toml
@@ -42,7 +42,7 @@ listen = "0.0.0.0:1883"
 next_connection_delay_ms = 1
     [v4.1.connections]
     connection_timeout_ms = 60000
-    max_payload_size = 20480
+    max_payload_size = 20000000 # 20 megs
     max_inflight_count = 100
     dynamic_filters = true
  #   auth = { user1 = "p@ssw0rd", user2 = "password" }
@@ -73,7 +73,7 @@ listen = "0.0.0.0:1884"
 next_connection_delay_ms = 1
     [v5.1.connections]
     connection_timeout_ms = 60000
-    max_payload_size = 20480
+    max_payload_size = 20000000 # 20 megs
     max_inflight_count = 100
 
 [prometheus]
@@ -88,7 +88,7 @@ next_connection_delay_ms = 1
     connection_timeout_ms = 60000
     max_client_id_len = 256
     throttle_delay_ms = 0
-    max_payload_size = 20480
+    max_payload_size = 20000000 # 20 megs
     max_inflight_count = 500
     max_inflight_size = 1024