diff --git a/Build/Changes.txt b/Build/Changes.txt
index 6fc2a689d..39b0d675d 100644
--- a/Build/Changes.txt
+++ b/Build/Changes.txt
@@ -87,7 +87,7 @@ CHANGES:
 - Menu and behavior for copy/paste and copy/paste line.
 - Allow each modification step to split undo typing sequence (set timeout < 20ms).
 - Split undo typing sequence (by line-breaks and/or timeout).
-- Update Oniguruma Regex (ONI) engine version 6.9.5 (2020/01/23).
+- Update Oniguruma Regex (ONI) engine version 6.9.4 (2019/10/31).
 - Update Scintilla Library (SCI) version 4.3.0 (2020/01/16).
 
 -----------------------------------------------------
diff --git a/Build/Notepad3.ini b/Build/Notepad3.ini
index d1c07f7b5..a34227077 100644
--- a/Build/Notepad3.ini
+++ b/Build/Notepad3.ini
@@ -146,8 +146,8 @@ SettingsVersion=4
 [Web Source Code]
 [XML Document]
 [YAML]
+[Window]
 [Suppressed Messages]
 [Recent Files]
 [Recent Find]
 [Recent Replace]
-[Window]
diff --git a/oniguruma/version.txt b/oniguruma/version.txt
index e1e5d1369..c250d84b8 100644
--- a/oniguruma/version.txt
+++ b/oniguruma/version.txt
@@ -1 +1 @@
-6.9.5
+6.9.4