diff --git a/dsmr_parser/clients/serial_.py b/dsmr_parser/clients/serial_.py
index f63ff07..12d2245 100644
--- a/dsmr_parser/clients/serial_.py
+++ b/dsmr_parser/clients/serial_.py
@@ -1,4 +1,3 @@
-import asyncio
 import logging
 import serial
 import serial_asyncio