diff --git a/ppb_vector/__init__.py b/ppb_vector/__init__.py
index 719b08b9..63917a2f 100644
--- a/ppb_vector/__init__.py
+++ b/ppb_vector/__init__.py
@@ -124,7 +124,7 @@ def __new__(cls, *args, **kwargs):
         return self
 
     def __reduce__(self):
-        return Vector.__new__, (Vector, self.x, self.y)
+        return Vector, (self.x, self.y)
 
     #: Return a new :py:class:`Vector` replacing specified fields with new values.
     update = dataclasses.replace