diff --git a/CHANGELOG-Japanese.md b/CHANGELOG-Japanese.md
index 2dfe73b..52840d7 100644
--- a/CHANGELOG-Japanese.md
+++ b/CHANGELOG-Japanese.md
@@ -1,5 +1,11 @@
 # 変更点
 
+## 2.7.1 [2024/10/31] Halloween Release
+
+**バグ修正:**
+
+- ログオンタイムラインの成功したログオンイベント(`4624`)において、ソースIPアドレスおよびソースコンピュータのフィールドが逆になっていた。(#208) (@fukusuket)
+
 ## 2.7.0 [2024/10/24] SecTor Release
 
 **新機能:**
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 232d9b0..c439c61 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changes
 
+## 2.7.1 [2024/10/31] Halloween Release
+
+**Bug Fixes:**
+
+- The Source IP Address and Source Computer fields for `4624` successful logon events in the logon timeline were backwards. (#208) (@fukusuket)
+
 ## 2.7.0 [2024/10/24] SecTor Release
 
 **New Features:**