diff --git a/src/MTProtoSession/AckHandler.php b/src/MTProtoSession/AckHandler.php
index 4032afd7e..fa7c5a8af 100644
--- a/src/MTProtoSession/AckHandler.php
+++ b/src/MTProtoSession/AckHandler.php
@@ -22,7 +22,6 @@
 
 use Amp\TimeoutException;
 use danog\MadelineProto\DataCenterConnection;
-use danog\MadelineProto\Exception;
 use danog\MadelineProto\Logger;
 use danog\MadelineProto\MTProto\MTProtoIncomingMessage;
 use danog\MadelineProto\MTProto\MTProtoOutgoingMessage;