diff --git a/package-lock.json b/package-lock.json
index 8ba2417b..e503f803 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
 			"devDependencies": {
 				"@biomejs/biome": "2.2.6",
 				"@types/node": "22.18.11",
-				"tsdown": "0.15.7",
+				"tsdown": "0.15.8",
 				"typescript": "5.9.3"
 			}
 		},
@@ -956,9 +956,9 @@
 			}
 		},
 		"node_modules/tsdown": {
-			"version": "0.15.7",
-			"resolved": "https://registry.npmjs.org/tsdown/-/tsdown-0.15.7.tgz",
-			"integrity": "sha512-uFaVgWAogjOMqjY+CQwrUt3C6wzy6ynt82CIoXymnbS17ipUZ8WDXUceJjkislUahF/BZc5+W44Ue3p2oWtqUg==",
+			"version": "0.15.8",
+			"resolved": "https://registry.npmjs.org/tsdown/-/tsdown-0.15.8.tgz",
+			"integrity": "sha512-A9CY3lO2SC6G5wyQV38cNdPkDmCoIQ6zYVd+lLnEGH09BxNRTJkCHfb7cBeBxZYJDYGFtgg/3yBpEryYJjBd+Q==",
 			"dev": true,
 			"license": "MIT",
 			"dependencies": {
@@ -970,7 +970,7 @@
 				"empathic": "^2.0.0",
 				"hookable": "^5.5.3",
 				"rolldown": "latest",
-				"rolldown-plugin-dts": "^0.16.11",
+				"rolldown-plugin-dts": "^0.16.12",
 				"semver": "^7.7.3",
 				"tinyexec": "^1.0.1",
 				"tinyglobby": "^0.2.15",
diff --git a/package.json b/package.json
index 900facd8..46c111f5 100644
--- a/package.json
+++ b/package.json
@@ -46,7 +46,7 @@
 	"devDependencies": {
 		"@biomejs/biome": "2.2.6",
 		"@types/node": "22.18.11",
-		"tsdown": "0.15.7",
+		"tsdown": "0.15.8",
 		"typescript": "5.9.3"
 	},
 	"publishConfig": {
</div><div class="naked_ctrl">
<form action="/index.cgi/larger-text" method="get" name="gate">
<p><a href="http://altstyle.alfasado.net">AltStyle</a> によって変換されたページ <a href="https://patch-diff.githubusercontent.com/raw/progfay/scrapbox-parser/pull/1962.diff">(-&gt;オリジナル)</a>
/ <label>アドレス: <input type="text" name="naked_post_url" value="https://patch-diff.githubusercontent.com/raw/progfay/scrapbox-parser/pull/1962.diff" size="22" /></label> <label>モード: <select name="naked_post_mode">
<option value="default">デフォルト</option>
<option value="speech">音声ブラウザ</option>
<option value="ruby">ルビ付き</option>
<option value="contrast">配色反転</option>
<option value="larger-text" selected="selected">文字拡大</option>
<option value="mobile">モバイル</option>
</select>
<input type="submit" value="表示" />
</p>
</form>
</div>