diff --git a/notebooks/ddcolor-image-colorization/gradio_helper.py b/notebooks/ddcolor-image-colorization/gradio_helper.py
index 1d89d550e76..ff54fe3d7f8 100644
--- a/notebooks/ddcolor-image-colorization/gradio_helper.py
+++ b/notebooks/ddcolor-image-colorization/gradio_helper.py
@@ -1,6 +1,5 @@
 from typing import Callable
 import gradio as gr
-from gradio_imageslider import ImageSlider
 from functools import partial