diff --git a/requirements.txt b/requirements.txt
index 78e34e5..1c2da42 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,7 +35,7 @@ service-identity==17.0.0
 six==1.11.0
 Twisted==18.4.0
 txaio==2.10.0
-urllib3==1.22
+urllib3==1.26.5
 watson-developer-cloud==1.3.4
 Werkzeug==0.14.1
 wikipedia==1.4.0