diff --git a/apps/one_piece_commanded/CHANGELOG.md b/apps/one_piece_commanded/CHANGELOG.md
index f775846..71e92db 100644
--- a/apps/one_piece_commanded/CHANGELOG.md
+++ b/apps/one_piece_commanded/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## v0.19.1 - 2023-10-04
+
+- Fixed `new/1` typespec of `OnePiece.Commanded.ValueObject`.
+
 ## v0.19.0 - 2023-06-15
 
 `OnePiece.Commanded.ValueObject` implements `Ecto.Type`, it means that `cast/2`, `dump/2`, and `load/2` are
diff --git a/apps/one_piece_commanded/lib/one_piece/commanded/value_object.ex b/apps/one_piece_commanded/lib/one_piece/commanded/value_object.ex
index 92afc48..829a893 100644
--- a/apps/one_piece_commanded/lib/one_piece/commanded/value_object.ex
+++ b/apps/one_piece_commanded/lib/one_piece/commanded/value_object.ex
@@ -46,7 +46,7 @@ defmodule OnePiece.Commanded.ValueObject do
       @doc """
       Creates a `t:t/0`.
       """
-      @spec new(attrs :: map()) :: {:ok, %__MODULE__{}}
+      @spec new(attrs :: map()) :: {:ok, %__MODULE__{}} | {:error, Ecto.Changeset.t()}
       def new(attrs) do
         ValueObject.__new__(__MODULE__, attrs)
       end
diff --git a/apps/one_piece_commanded/mix.exs b/apps/one_piece_commanded/mix.exs
index 2e826f6..cad7df9 100644
--- a/apps/one_piece_commanded/mix.exs
+++ b/apps/one_piece_commanded/mix.exs
@@ -2,7 +2,7 @@ defmodule OnePiece.Commanded.MixProject do
   use Mix.Project
 
   @app :one_piece_commanded
-  @version "0.19.0"
+  @version "0.19.1"
   @elixir_version "~> 1.13"
   @source_url "https://github.com/straw-hat-team/beam-monorepo"