diff --git a/ctfdbapi/requirements.txt b/ctfdbapi/requirements.txt
index b25ca3b..6ccdf7f 100644
--- a/ctfdbapi/requirements.txt
+++ b/ctfdbapi/requirements.txt
@@ -51,7 +51,7 @@ speaklater==1.3
 SQLAlchemy==1.3.3
 sqlalchemy-schemadisplay==1.3
 tornado==4.5.1
-urllib3==1.21.1
+urllib3==1.24.2
 waitress==1.3.0
 Werkzeug==0.12.2
 WTForms==2.1