diff --git a/requirements.txt b/requirements.txt
index 45a8fd3..2b98bfa 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -72,7 +72,7 @@ toolz==0.9.0
 tornado==5.1.1
 traitlets==4.3.2
 typing==3.6.6
-urllib3==1.23
+urllib3==1.26.5
 vincent==0.4.4
 wcwidth==0.1.7
 win-inet-pton==1.0.1