diff --git a/history.en.md b/history.en.md
index 29aca5f8..45bcdfc6 100644
--- a/history.en.md
+++ b/history.en.md
@@ -1,6 +1,7 @@
 # History
 
  - master/HEAD
+ - 1.0.9 (2020.3.6)
    * Show in-content confirmation dialog correctly on lately versions of Firefox.
    * Remove keyboard shorctut customization UI, because Firefox ESR68 has it.
    * Uninitialized options page is now invisible.
diff --git a/history.ja.md b/history.ja.md
index 54c67a5c..23fcc6f3 100644
--- a/history.ja.md
+++ b/history.ja.md
@@ -1,6 +1,7 @@
 # 更新履歴
 
  - master/HEAD
+ - 1.0.9 (2020.3.6)
    * 最近のバージョンのFirefoxにおいて、コンテンツ領域内に確認ダイアログが表示されなくなっていたのを修正
    * Firefox ESR68時点ですでに本体にUIがあるため、キーボードショートカット設定用のUIを削除した
    * 初期化前の設定画面を隠すようにした
diff --git a/manifest.json b/manifest.json
index ce98b60b..6f0ecd1c 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,7 +1,7 @@
 {
   "manifest_version": 2,
   "name": "__MSG_extensionName__",
-  "version": "1.0.8",
+  "version": "1.0.9",
   "author": "YUKI \"Piro\" Hiroshi",
   "description": "__MSG_extensionDescription__",
   "permissions": [