diff --git a/tests/test_amqp.py b/tests/test_amqp.py
index 552e7823..cfd4aecc 100644
--- a/tests/test_amqp.py
+++ b/tests/test_amqp.py
@@ -1071,7 +1071,7 @@ async def test_big_message(self):
 
         await queue.bind(exchange, routing_key)
 
-        body = bytes(shortuuid.uuid(), 'utf-8') * 9999999
+        body = bytes(shortuuid.uuid(), 'utf-8') * 6000000
 
         await exchange.publish(
             Message(