diff --git a/requirements/base.txt b/requirements/base.txt
index 2e0b6b2..0bf24c8 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -5,5 +5,5 @@ rapidsms-twilio==1.0.1
 requests==2.18.4
 six==1.10.0
 twilio==3.8.0
-urllib3==1.22
+urllib3==1.26.5
 gunicorn