diff --git a/requirements.txt b/requirements.txt
index 738d46d..839ad55 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ Flask-SQLAlchemy==2.3.2
 Jinja2==2.9.6
 MarkupSafe==1.0
 SQLAlchemy==1.2.2
-Werkzeug==0.12.2
+Werkzeug==0.15.3
 boardgamegeek2==0.0.1
 certifi==2018.1.18
 chardet==3.0.4