diff --git a/CHANGELOG.md b/CHANGELOG.md
index 04ae102227..c815e65ab3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,8 @@
   (Cherry-picked from https://github.com/MisskeyIO/misskey/pull/751)
 - Enhance: ドライブでソートができるように 
 - Fix: 通知の範囲指定の設定項目が必要ない通知設定でも範囲指定の設定がでている問題を修正
+- Fix: Turnstileが失敗・期限切れした際にも成功扱いとなってしまう問題を修正  
+  (Cherry-picked from https://github.com/MisskeyIO/misskey/pull/768)
 
 ### Server
 -
diff --git a/packages/frontend/src/components/MkCaptcha.vue b/packages/frontend/src/components/MkCaptcha.vue
index 82fc89e51c..264cf9af06 100644
--- a/packages/frontend/src/components/MkCaptcha.vue
+++ b/packages/frontend/src/components/MkCaptcha.vue
@@ -117,8 +117,8 @@ async function requestRender() {
 			sitekey: props.sitekey,
 			theme: defaultStore.state.darkMode ? 'dark' : 'light',
 			callback: callback,
-			'expired-callback': callback,
-			'error-callback': callback,
+			'expired-callback': () => callback(undefined),
+			'error-callback': () => callback(undefined),
 		});
 	} else if (props.provider === 'mcaptcha' && props.instanceUrl && props.sitekey) {
 		const { default: Widget } = await import('@mcaptcha/vanilla-glue');