diff --git a/requirements.txt b/requirements.txt
index 339d6be..129e59d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -111,7 +111,7 @@ traitlets==4.3.3
 Twisted==19.7.0
 txaio==18.8.1
 tzlocal==2.0.0
-urllib3==1.25.6
+urllib3==1.26.5
 wcwidth==0.1.7
 webencodings==0.5.1
 websockets==8.1