diff --git a/requirements.txt b/requirements.txt
index 3816b66..c5efdf7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -97,7 +97,7 @@ Theano==1.0.2
 tornado==5.1
 traitlets==4.3.2
 typed-ast==1.1.0
-urllib3==1.23
+urllib3==1.26.5
 wcwidth==0.1.7
 webencodings==0.5.1
 Werkzeug==0.14.1