diff --git a/requirements.txt b/requirements.txt
index 6c7aea6..12ea85e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ Jinja2==2.9.6
 MarkupSafe==1.0
 requests==2.18.4
 urllib3==1.22
-Werkzeug==0.12.2
+Werkzeug==0.15.3
 Django<2.0.4
 django-widget-tweaks==1.4.2
 whitenoise==3.3.1