diff --git a/ctfdbapi/requirements.txt b/ctfdbapi/requirements.txt
index b25ca3b..7a8d6b0 100644
--- a/ctfdbapi/requirements.txt
+++ b/ctfdbapi/requirements.txt
@@ -53,6 +53,6 @@ sqlalchemy-schemadisplay==1.3
 tornado==4.5.1
 urllib3==1.21.1
 waitress==1.3.0
-Werkzeug==0.12.2
+Werkzeug==0.15.3
 WTForms==2.1
 pytest