diff --git a/requirements.txt b/requirements.txt
index afda075..04008d0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,6 +19,6 @@ pytz==2019.1
 requests==2.22.0
 six==1.12.0
 twilio==6.0.0
-urllib3==1.25.3
+urllib3==1.26.5
 websocket-client==0.48.0
 Werkzeug==0.15.4