diff --git a/ppb_vector/__init__.py b/ppb_vector/__init__.py
index dc9b5b0e..33fad2ae 100644
--- a/ppb_vector/__init__.py
+++ b/ppb_vector/__init__.py
@@ -1 +1,3 @@
 from ppb_vector.vector2 import Vector2  # noqa
+
+__version__ = "1.0"