diff --git a/docs/content.en/docs/changelog/_index.md b/docs/content.en/docs/changelog/_index.md
index 9b95eb42..9e00b319 100644
--- a/docs/content.en/docs/changelog/_index.md
+++ b/docs/content.en/docs/changelog/_index.md
@@ -6,7 +6,22 @@ weight = 4
 
 # Change Log
 
-# Changes from v3
+# v4.0.1
+
+## Fixed
+
+- Resolved naming conflict of `sematic_version::{major, minor}` with macros defined in `<sys/sysmacro.h>`
+- Fixed the definition of `operator<<` in `discard_comments`
+- Fixed the issue where the first blank line was not output in `format_location`
+- Fixed the issue where error messages pointing to `source_location` referring to lines containing only newline characters were displayed in two lines
+- Corrected links in the README
+- Corrected the title of the README in `example/unicode`
+
+## Added
+
+- Configured CI to automatically update `single_include/toml.hpp` when changes are made to `main`
+
+# Changes from v3 to v4
 
 ## Breaking Changes
 
diff --git a/docs/content.ja/docs/changelog/_index.md b/docs/content.ja/docs/changelog/_index.md
index 338d32cd..e6cb14dc 100644
--- a/docs/content.ja/docs/changelog/_index.md
+++ b/docs/content.ja/docs/changelog/_index.md
@@ -6,7 +6,22 @@ weight = 4
 
 # Change Log
 
-# v3からの変化
+# v4.0.1
+
+## Fixed
+
+- `sematic_version::{major, minor}` と `<sys/sysmacro.h>` 内で定義されるマクロの衝突を解消
+- `discard_comments` の `operator<<` の定義を修正
+- `format_location`を使用した際に最初の空行が出ない問題を解決
+- 改行文字のみを含む行を指す`source_location`でエラーメッセージを生成した際に、同じ行が二回表示される問題を解決
+- `README.md`内のリンクを修正
+- `example/unicode`のREADMEのタイトルを修正
+
+## Added
+
+- `main`に変更があったとき、`single_include/toml.hpp`を自動生成するようCIを設定
+
+# v3からv4への変化
 
 ## 破壊的変更