diff --git a/requirements.txt b/requirements.txt
index 4f72146..bbaaf55 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -124,7 +124,7 @@ tornado==6.0.4
 traitlets==4.3.3
 Twisted==20.3.0
 txaio==20.4.1
-urllib3==1.25.3
+urllib3==1.25.8
 wcwidth==0.1.9
 webencodings==0.5.1
 Werkzeug==0.15.4