diff --git a/Project.toml b/Project.toml
index b89f27d..a8edb2f 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "MessagePassingIPA"
 uuid = "ae93bb3c-0630-4e85-811e-b7d91ad6ecbd"
 authors = ["Kenta Sato <bicycle1885@gmail.com> and contributors"]
-version = "1.0.0-DEV"
+version = "0.0.1"
 
 [deps]
 Flux = "587475ba-b771-5e3f-ad9e-33799f191a9c"