diff --git a/setup.cfg b/setup.cfg
index 0f2383f31..5b0401ffa 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -42,7 +42,7 @@ install_requires =
     stevedore
     ujson
     voluptuous>=0.8.10
-    werkzeug
+    werkzeug<3.0.0
     trollius; python_version < '3.4'
     tenacity>=4.6.0,<7.0.0
     WebOb>=1.4.1