diff --git a/src/master/requirements.txt b/src/master/requirements.txt
index 97d82eb..1c65221 100644
--- a/src/master/requirements.txt
+++ b/src/master/requirements.txt
@@ -26,7 +26,7 @@ requests==2.18.4
 six==1.11.0
 SQLAlchemy==1.1.18
 tornado==4.5.3
-urllib3==1.22
+urllib3==1.26.5
 healthcheck==1.3.3
 Werkzeug==0.16.0
 PyJWT==1.7.1