diff --git a/requirements.txt b/requirements.txt
index 27dcb23..340f08f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -108,7 +108,7 @@ traitlets==4.3.3
 Twisted==20.3.0
 txaio==20.4.1
 typing-extensions==3.7.4.2
-urllib3==1.24.3
+urllib3==1.26.5
 virtualenv==20.0.18
 waitress==1.4.3
 wcwidth==0.1.9