diff --git a/src/openflexure_microscope_server/things/autofocus.py b/src/openflexure_microscope_server/things/autofocus.py
index c6faf8e7..a85b0d77 100644
--- a/src/openflexure_microscope_server/things/autofocus.py
+++ b/src/openflexure_microscope_server/things/autofocus.py
@@ -16,6 +16,8 @@ import shutil
 import glob
 
 from fastapi import Depends
+import numpy as np
+from pydantic import BaseModel
 
 from labthings_fastapi.thing import Thing
 from labthings_fastapi.dependencies.blocking_portal import BlockingPortal
@@ -29,9 +31,6 @@ from .camera import RawCameraDependency as Camera
 from .camera import CameraDependency as WrappedCamera
 from .stage import StageDependency as Stage
 from .capture import CaptureThing
-import numpy as np
-from pydantic import BaseModel
-
 
 CaptureDep = direct_thing_client_dependency(CaptureThing, "/capture/")