diff --git a/Project.toml b/Project.toml
index d0f2130b..0c68e8d8 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "ThreadsX"
 uuid = "ac1d9e8a-700a-412c-b207-f0111f4b6c0d"
 authors = ["Takafumi Arakaki <aka.tkf@gmail.com>"]
-version = "0.1.5-DEV"
+version = "0.1.5"
 
 [deps]
 ArgCheck = "dce04be8-c92d-5529-be00-80e4d2c0e197"