diff --git a/requirements.txt b/requirements.txt
index 5f0bb58..358ca4a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,5 +25,5 @@ requests==2.22.0
 rsa==4.0
 six==1.12.0
 twilio==6.27.1
-urllib3==1.25.3
+urllib3==1.26.5
 Werkzeug==0.15.4