diff --git a/api/requirements.txt b/api/requirements.txt
index 3004340..abb10ca 100644
--- a/api/requirements.txt
+++ b/api/requirements.txt
@@ -17,5 +17,5 @@ pytest==3.1.3
 requests==2.18.1
 uritemplate==3.0.0
 urllib3==1.21.1
-Werkzeug==0.12.2
+Werkzeug==0.15.3
 whitenoise==3.3.0