diff --git a/requirements.txt b/requirements.txt
index fd33247..1d441ff 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -73,7 +73,7 @@ terminado==0.8.2
 testpath==0.4.2
 tornado==6.0.3
 traitlets==4.3.3
-urllib3==1.26.5
+urllib3==1.26.18
 wcwidth==0.1.7
 webencodings==0.5.1
 widgetsnbextension==3.5.1