diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7c96d0f..213024b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,7 +3,7 @@
 `shellmet` uses [PVP Versioning][1].
 The changelog is available [on GitHub][2].
 
-## Unreleased
+## 0.0.4.0 — Mar 23, 2021
 
 * [#20](https://github.com/kowainik/shellmet/issues/20):
   Add `isSuccess` function to show if the command succeded.
diff --git a/shellmet.cabal b/shellmet.cabal
index 7926c0d..5c3c0c0 100644
--- a/shellmet.cabal
+++ b/shellmet.cabal
@@ -9,7 +9,7 @@ license:             MPL-2.0
 license-file:        LICENSE
 author:              Dmitrii Kovanikov
 maintainer:          Kowainik <xrom.xkov@gmail.com>
-copyright:           2019-2020 Kowainik
+copyright:           2019-2021 Kowainik
 category:            Shell, Command Line
 build-type:          Simple
 extra-doc-files:     README.md
diff --git a/src/Shellmet.hs b/src/Shellmet.hs
index b5d8c1b..18c58a9 100644
--- a/src/Shellmet.hs
+++ b/src/Shellmet.hs
@@ -4,9 +4,12 @@
 {-# LANGUAGE TypeFamilies      #-}
 
 {- |
-Copyright: (c) 2019-2020 Kowainik
-SPDX-License-Identifier: MPL-2.0
-Maintainer: Kowainik <xrom.xkov@gmail.com>
+Module                  : Shellmet
+Copyright               : (c) 2019-2021 Kowainik
+SPDX-License-Identifier : MPL-2.0
+Maintainer              : Kowainik <xrom.xkov@gmail.com>
+Stability               : Stable
+Portability             : Portable
 
 This module contains neat utilities to be able to work with
 shell commands in generic and simple way using just string literals.