diff --git a/testapp/requirements.txt b/testapp/requirements.txt
index df494eb..bf0166d 100644
--- a/testapp/requirements.txt
+++ b/testapp/requirements.txt
@@ -23,4 +23,4 @@ requests==2.18.4
 six==1.11.0
 SQLAlchemy==1.1.14
 urllib3==1.22
-Werkzeug==0.12.2
+Werkzeug==0.15.5