diff --git a/requirements.txt b/requirements.txt
index 65af754..fcb60c6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ python-etcd==0.3.2
 future==0.15.2
 pytz==2016.3
 requests[security]==2.9.1
-urllib3==1.15
+urllib3==1.26.5
 celery[mongodb]==3.1.23
 
 https://github.com/totem/fleet-py/archive/0.1.6.tar.gz