diff --git a/requirements.txt b/requirements.txt
index d601371..337fe89 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,5 +14,5 @@ python-engineio==1.7.0
 python-socketio==1.7.6
 requests>=2.20.0
 six==1.10.0
-urllib3==1.21.1
+urllib3==1.26.5
 Werkzeug==0.12.2