diff --git a/requirements.txt b/requirements.txt
index 352d745..f12b40b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -59,7 +59,7 @@ toml
 traitlets==4.3.3
 Twisted==20.3.0
 txaio==20.4.1
-urllib3==1.25.10
+urllib3==1.26.5
 wcwidth
 whitenoise==5.2.0
 wincertstore==0.2