diff --git a/flask_potion/filters.py b/flask_potion/filters.py
index ad548e1..451de2a 100644
--- a/flask_potion/filters.py
+++ b/flask_potion/filters.py
@@ -1,4 +1,4 @@
-from pip.utils import cached_property
+from werkzeug.utils import cached_property
 
 from .schema import Schema
 from .utils import get_value