diff --git a/requirements.txt b/requirements.txt
index 852ebba..0137e68 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,5 +12,5 @@ pytz==2018.9
 requests==2.21.0
 six==1.12.0
 twilio==6.25.2
-urllib3==1.24.1
+urllib3==1.26.5
 Werkzeug==0.15.1