diff --git a/requirements.txt b/requirements.txt
index a279c60..2567003 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -48,7 +48,7 @@ scrypt==0.8.6
 semantic-version==2.6.0
 six==1.11.0
 toolz==0.9.0
-urllib3==1.23
+urllib3==1.24.2
 web3==4.2.1
 websockets==6.0
 Werkzeug==0.14.1