diff --git a/requirements.txt b/requirements.txt
index 70e6fe2..1c9bd6a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,6 +10,6 @@ MarkupSafe==1.0
 requests==2.18.4
 six==1.11.0
 slackclient==1.1.2
-urllib3==1.22
+urllib3==1.26.5
 websocket-client==0.46.0
 Werkzeug==0.14.1