diff --git a/requirements.txt b/requirements.txt
index f07f1427..1c683771 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,6 +27,6 @@ requests-oauthlib==0.8.0
 six==1.10.0
 Twisted==17.5.0
 txaio==2.8.0
-urllib3==1.21.1
+urllib3==1.26.5
 zope.interface==4.4.2
 yapf==0.21.0