diff --git a/requirements.txt b/requirements.txt
index 59fbca1..6242ae0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,5 +19,5 @@ pytz==2018.5
 requests==2.19.1
 rsa==3.4.2
 six==1.11.0
-urllib3==1.23
+urllib3==1.26.5
 zope.interface==4.5.0