diff --git a/tiatoolbox/visualization/bokeh_app/main.py b/tiatoolbox/visualization/bokeh_app/main.py
index 7c043afad..e26938a31 100644
--- a/tiatoolbox/visualization/bokeh_app/main.py
+++ b/tiatoolbox/visualization/bokeh_app/main.py
@@ -13,10 +13,6 @@
 import numpy as np
 import requests
 import torch
-from matplotlib import colormaps
-from PIL import Image
-from requests.adapters import HTTPAdapter, Retry
-
 from bokeh.events import ButtonClick, DoubleTap, MenuItemClick
 from bokeh.io import curdoc
 from bokeh.layouts import column, row
@@ -58,6 +54,9 @@
 from bokeh.models.tiles import WMTSTileSource
 from bokeh.plotting import figure
 from bokeh.util import token
+from matplotlib import colormaps
+from PIL import Image
+from requests.adapters import HTTPAdapter, Retry
 
 # github actions seems unable to find tiatoolbox unless this is here
 sys.path.insert(0, str(Path(__file__).parent.parent.parent.parent))