diff --git a/requirements.txt b/requirements.txt
index a186f2f..ed00c9c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,6 +24,6 @@ pytz==2017.3
 requests==2.18.4
 six==1.11.0
 traitlets==4.3.2
-urllib3==1.22
+urllib3==1.26.5
 Werkzeug==0.12.2
 gunicorn