diff --git a/lib.txt b/lib.txt
index 37e3f1b..573a93d 100644
--- a/lib.txt
+++ b/lib.txt
@@ -13,6 +13,6 @@ pytz==2017.2
 requests==2.19.1
 smtplibaio==2.1.1
 split==0.4
-urllib3==1.23
+urllib3==1.24.2
 xlrd==1.1.0
 zope.interface==4.4.3