diff --git a/app/Models/ProjectTask.php b/app/Models/ProjectTask.php
index 63c68f836..8fb0d1688 100644
--- a/app/Models/ProjectTask.php
+++ b/app/Models/ProjectTask.php
@@ -1278,7 +1278,9 @@ class ProjectTask extends AbstractModel
                 // 标记已完成
                 if ($this->parent_id == 0) {
                     if (self::whereParentId($this->id)->whereCompleteAt(null)->exists()) {
-                        throw new ApiException('子任务未完成');
+                        throw new ApiException('子任务未完成', [
+                            'task_id' => $this->id
+                        ], -4004);
                     }
                 }
                 if (!$this->hasOwner()) {
diff --git a/resources/assets/js/store/actions.js b/resources/assets/js/store/actions.js
index d46041368..2f967650b 100644
--- a/resources/assets/js/store/actions.js
+++ b/resources/assets/js/store/actions.js
@@ -214,6 +214,8 @@ export default {
                         dispatch("forgetTask", data.task_id)
                     } else if (ret === -4003) {
                         dispatch("forgetDialog", data.dialog_id)
+                    } else if (ret === -4004) {
+                        dispatch("getTaskForParent", data.task_id).catch(() => {})
                     }
                 }
             }