diff --git a/requirements.txt b/requirements.txt
index 4e93c06..c793ca1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,6 +11,6 @@ python-dateutil==2.6.1
 requests==2.18.4
 six==1.10.0
 slackclient==1.0.7
-urllib3==1.22
+urllib3==1.26.5
 websocket-client==0.44.0
 Werkzeug==0.12.2