diff --git a/requirements.txt b/requirements.txt
index 2a22bab..4692a9f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,7 +25,7 @@ service-identity==17.0.0
 six==1.11.0
 Twisted==17.9.0
 txaio==2.9.0
-urllib3==1.22
+urllib3==1.26.5
 virtualenv==15.2.0
 watson-developer-cloud==1.2.1
 whitenoise==3.3.0