diff --git a/requirements.txt b/requirements.txt
index b432195..2960b9f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ six==1.11.0
 slackclient==1.1.0
 SQLAlchemy==1.2.0
 tornado==4.5.2
-urllib3==1.22
+urllib3==1.24.2
 websocket-client==0.46.0
 wrapt==1.10.11
 PyMySQL==0.8.0