diff --git a/Cargo.lock b/Cargo.lock
index f0dc38c..5b7b70e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -934,7 +934,7 @@ checksum = "f3cb5ba0dc43242ce17de99c180e96db90b235b8a9fdc9543c96d2209116bd9f"
 
 [[package]]
 name = "saekawa"
-version = "0.4.0"
+version = "0.4.1"
 dependencies = [
  "aes",
  "cbc",
diff --git a/Cargo.toml b/Cargo.toml
index 41e1b46..4df6924 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "saekawa"
-version = "0.4.0"
+version = "0.4.1"
 edition = "2021"
 license = "0BSD"