diff --git a/requirements.txt b/requirements.txt
index be93528..d5112b2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ Jinja2==2.10
 MarkupSafe==1.1.1
 pyasn1==0.4.3
 requests==2.19.1
-urllib3==1.23
+urllib3==1.26.5
 Werkzeug==0.14.1
 zope.event==4.5.0
 zope.interface==5.4.0