diff --git a/mesa/experimental/jupyter_viz.py b/mesa/experimental/jupyter_viz.py
index 579391c54e4..2e5f066409f 100644
--- a/mesa/experimental/jupyter_viz.py
+++ b/mesa/experimental/jupyter_viz.py
@@ -1,6 +1,5 @@
 import sys
 import threading
-from typing import Optional
 
 import matplotlib.pyplot as plt
 import reacton.ipywidgets as widgets