diff --git a/micropython/umqtt.simple/umqtt/simple.py b/micropython/umqtt.simple/umqtt/simple.py
index 28c2c7c2d..e7631089c 100644
--- a/micropython/umqtt.simple/umqtt/simple.py
+++ b/micropython/umqtt.simple/umqtt/simple.py
@@ -1,6 +1,6 @@
 import socket
 import struct
-from binascii import hexlify
+# from binascii import hexlify
 
 
 class MQTTException(Exception):