diff --git a/requirements.txt b/requirements.txt
index 5a7b501..0f02820 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -107,7 +107,7 @@ twilio~=6.35.2
 Twisted==19.10.0
 txaio==20.1.1
 uritemplate==3.0.1
-urllib3==1.25.3
+urllib3==1.26.5
 vine==1.3.0
 virtualenv==16.6.0
 wcwidth==0.1.8