diff --git a/requirements.txt b/requirements.txt
index b1bb14e..83bd5be 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -82,7 +82,7 @@ testpath==0.4.2
 tornado==6.0.3
 traitlets==4.3.2
 typed-ast==1.4.0
-urllib3==1.25.3
+urllib3==1.25.8
 wcwidth==0.1.7
 webencodings==0.5.1
 widgetsnbextension==3.5.1