diff --git a/examples/echo_client.py b/examples/echo_client.py
index 5387f6f..c8d188c 100644
--- a/examples/echo_client.py
+++ b/examples/echo_client.py
@@ -17,7 +17,7 @@ import logging
 from getpass import getpass
 from argparse import ArgumentParser
 
-from slixmpp import ClientXMPP, JID
+from slixmpp import ClientXMPP
 from slixmpp.stanza import Message
 from slixmpp_omemo import PluginCouldNotLoad, MissingOwnKey, EncryptionPrepareException
 from slixmpp_omemo import UndecidedException, UntrustedException, NoAvailableSession
@@ -131,7 +131,7 @@ class EchoBot(ClientXMPP):
 
         return None
 
-    async def plain_reply(self, original_msg, body) -> None:
+    async def plain_reply(self, original_msg, body):
         """
         Helper to reply to messages
         """
@@ -142,7 +142,7 @@ class EchoBot(ClientXMPP):
         msg['body'] = body
         return msg.send()
 
-    async def encrypted_reply(self, original_msg, body) -> None:
+    async def encrypted_reply(self, original_msg, body):
         """Helper to reply with encrypted messages"""
 
         mto = original_msg['from']