diff --git a/requirements.txt b/requirements.txt
index 648ea3b..2d521dd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -75,7 +75,7 @@ tornado==6.0.3
 tqdm==4.41.1
 traitlets==4.3.3
 typed-ast==1.4.0
-urllib3==1.25.6
+urllib3==1.25.8
 wcwidth==0.1.7
 webencodings==0.5.1
 widgetsnbextension==3.5.1