diff --git a/jupyter_demo/requirements.txt b/jupyter_demo/requirements.txt
index d1f0d1e..141fe0f 100644
--- a/jupyter_demo/requirements.txt
+++ b/jupyter_demo/requirements.txt
@@ -49,7 +49,7 @@ testpath==0.4.2
 tornado==5.1.1
 tqdm==4.28.1
 traitlets==4.3.2
-urllib3==1.24.1
+urllib3==1.26.5
 wcwidth==0.1.7
 webencodings==0.5.1
 widgetsnbextension==3.4.2