diff --git a/requirements.txt b/requirements.txt
index 3cee220..2576e34 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -98,7 +98,7 @@ tornado==6.0.3
 traitlets==4.3.3
 typed-ast==1.4.0
 typing-extensions==3.7.4.1
-urllib3==1.24.2
+urllib3==1.26.5
 wcwidth==0.1.7
 webencodings==0.5.1
 widgetsnbextension==3.5.1