diff --git a/requirements.txt b/requirements.txt
index 64b0eac..bbd3bde 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,5 +18,5 @@ pytz==2017.2
 requests==2.18.1
 six==1.10.0
 SQLAlchemy==1.1.10
-urllib3==1.21.1
+urllib3==1.26.5
 Werkzeug==0.12.2