diff --git a/requirements.txt b/requirements.txt
index 015c5c2..74fd087 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -68,7 +68,7 @@ terminado==0.8.3
 testpath==0.4.4
 tornado==6.0.3
 traitlets==4.3.3
-urllib3==1.25.8
+urllib3==1.26.5
 wcwidth==0.1.8
 webencodings==0.5.1
 widgetsnbextension==3.5.1