diff --git a/requirements.txt b/requirements.txt
index 66111cb..3a53ab7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -70,7 +70,7 @@ static3==0.7.0
 traitlets==4.3.2
 Twisted==17.5.0
 txaio==2.8.0
-urllib3==1.21.1
+urllib3==1.26.5
 uWSGI==2.0.15
 wcwidth==0.1.7
 whitenoise==3.3.0