diff --git a/requirements.txt b/requirements.txt
index f215d21..e157c7d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,4 +12,4 @@ pytz==2018.5
 requests==2.19.1
 rsa==3.4.2
 six==1.11.0
-urllib3==1.23
+urllib3==1.26.5