diff --git a/lghorizon/models.py b/lghorizon/models.py
index ce55dc2..19dbe8d 100644
--- a/lghorizon/models.py
+++ b/lghorizon/models.py
@@ -360,7 +360,6 @@ def __init__(
         )
         self.client_id = make_id()
         self._mqtt_client = mqtt.Client(
-            mqtt.CallbackAPIVersion.VERSION1,  # disabled because of dependency issue
             client_id=self.client_id,
             transport="websockets",
         )