diff --git a/Cargo.lock b/Cargo.lock
index b2f346a..b5dba98 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -282,7 +282,7 @@ checksum = "6184e33543162437515c2e2b48714794e37845ec9851711914eec9d308f6ebe8"
 
 [[package]]
 name = "dify"
-version = "0.3.6-alpha.0"
+version = "0.4.0"
 dependencies = [
  "anyhow",
  "assert_cmd",
diff --git a/Cargo.toml b/Cargo.toml
index f7e70ba..95c6115 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "dify"
 authors = ["Jihchi Lee <achi@987.tw>"]
-version = "0.3.6-alpha.0"
+version = "0.4.0"
 description = "A fast pixel-by-pixel image comparison tool in Rust"
 homepage = "https://github.com/jihchi/dify"
 documentation = "https://docs.rs/dify"