diff --git a/requirements.txt b/requirements.txt
index d3239b3..7a9ff95 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -124,7 +124,7 @@ tornado==6.0.4
 traitlets==4.3.3
 transformations==2020.1.1
 typed-ast==1.4.1
-urllib3==1.22.0
+urllib3==1.26.5
 wcwidth==0.1.9
 webencodings==0.5.1
 Werkzeug==1.0.1