diff --git a/requirements-dev.txt b/requirements-dev.txt
index e086d379ad8bb9c255ea8793c1aae6fe88167fcb..835713ba48190e6cc5478d6f4cbd30135d6bf74d 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -7,4 +7,4 @@ flake8==3.7.9
 responses==0.10.9
 stellar==0.4.5
 wagtail-factories==2.0.0
-Werkzeug==0.16.1
+Werkzeug==1.0.0