diff --git a/src/aiida/brokers/broker.py b/src/aiida/brokers/broker.py
index 388cd7e510..7f719f0760 100644
--- a/src/aiida/brokers/broker.py
+++ b/src/aiida/brokers/broker.py
@@ -8,7 +8,6 @@
 if t.TYPE_CHECKING:
     from plumpy.coordinator import Coordinator
 
-    from aiida.manage.configuration.profile import Profile
 
 __all__ = ('Broker',)
 
diff --git a/src/aiida/brokers/rabbitmq/broker.py b/src/aiida/brokers/rabbitmq/broker.py
index 103720c83f..dc9af4acd5 100644
--- a/src/aiida/brokers/rabbitmq/broker.py
+++ b/src/aiida/brokers/rabbitmq/broker.py
@@ -6,9 +6,8 @@
 import functools
 import typing as t
 
-from plumpy.rmq import RemoteProcessThreadController, RmqCoordinator
 from plumpy import ProcessController
-from plumpy.rmq.process_control import RemoteProcessController
+from plumpy.rmq import RemoteProcessThreadController
 
 from aiida.brokers.broker import Broker
 from aiida.brokers.rabbitmq.coordinator import RmqLoopCoordinator
diff --git a/src/aiida/brokers/rabbitmq/coordinator.py b/src/aiida/brokers/rabbitmq/coordinator.py
index 58ce21ecee..a0f2fdf02f 100644
--- a/src/aiida/brokers/rabbitmq/coordinator.py
+++ b/src/aiida/brokers/rabbitmq/coordinator.py
@@ -1,10 +1,8 @@
-# -*- coding: utf-8 -*-
+import concurrent.futures
 from asyncio import AbstractEventLoop
-import asyncio
 from typing import Generic, TypeVar, final
-import kiwipy
-import concurrent.futures
 
+import kiwipy
 from plumpy.exceptions import CoordinatorConnectionError
 from plumpy.rmq.communications import convert_to_comm
 
@@ -71,7 +69,7 @@ def broadcast_send(
         subject=None,
         correlation_id=None,
     ):
-        from aio_pika.exceptions import ChannelInvalidStateError, AMQPConnectionError
+        from aio_pika.exceptions import AMQPConnectionError, ChannelInvalidStateError
 
         try:
             rsp = self._comm.broadcast_send(body, sender, subject, correlation_id)
diff --git a/src/aiida/cmdline/utils/decorators.py b/src/aiida/cmdline/utils/decorators.py
index 1cd251493e..c5fdf826ca 100644
--- a/src/aiida/cmdline/utils/decorators.py
+++ b/src/aiida/cmdline/utils/decorators.py
@@ -18,7 +18,6 @@
 
 """
 
-import asyncio
 from contextlib import contextmanager
 
 from click_spinner import spinner
diff --git a/src/aiida/engine/runners.py b/src/aiida/engine/runners.py
index 007ae3770e..768d9fd569 100644
--- a/src/aiida/engine/runners.py
+++ b/src/aiida/engine/runners.py
@@ -22,12 +22,12 @@
 from plumpy.coordinator import Coordinator
 from plumpy.events import reset_event_loop_policy, set_event_loop_policy
 from plumpy.persistence import Persister
-from plumpy.rmq import RemoteProcessThreadController, wrap_communicator
+from plumpy.rmq import RemoteProcessThreadController
 
+from aiida.brokers import Broker
 from aiida.common import exceptions
 from aiida.orm import ProcessNode, load_node
 from aiida.plugins.utils import PluginVersionProvider
-from aiida.brokers import Broker
 
 from . import transports, utils
 from .processes import Process, ProcessBuilder, ProcessState, futures