diff --git a/history.en.md b/history.en.md
index b82de0845..3fcb01dca 100644
--- a/history.en.md
+++ b/history.en.md
@@ -1,6 +1,7 @@
 # History
 
  - master/HEAD
+ - 3.9.16 (2023.7.21)
    * Reduce RAM usage around favicons.
    * Right-click on the "new tab" button now opens containers selector like recent versions of Firefox.
    * Expand ancestors tree while a tab is moved by Ctrl-PageUp/PageDown for better usability.
diff --git a/history.ja.md b/history.ja.md
index f8f9bfdf2..c1eec4398 100644
--- a/history.ja.md
+++ b/history.ja.md
@@ -1,6 +1,7 @@
 # 更新履歴
 
  - master/HEAD
+ - 3.9.16 (2023.7.21)
    * faviconの取り扱いに関するメモリ消費を削減
    * 「新しいタブ」ボタンの上での右クリックでコンテナーの選択肢を表示するようにした（最近のバージョンのFirefoxの挙動を再現）
    * 利便性向上のため、Ctrl-PageUp/PageDownでのタブの移動中は、ツリーの祖先を展開するようにした
diff --git a/webextensions/manifest.json b/webextensions/manifest.json
index ecf603a5a..b8f2c4bb4 100644
--- a/webextensions/manifest.json
+++ b/webextensions/manifest.json
@@ -1,7 +1,7 @@
 {
   "manifest_version": 2,
   "name": "__MSG_extensionName__",
-  "version": "3.9.15",
+  "version": "3.9.16",
   "author": "YUKI \"Piro\" Hiroshi",
   "description": "__MSG_extensionDescription__",
   "permissions": [