diff --git a/.claude-plugin/marketplace.json b/.claude-plugin/marketplace.json
index 5639ef7..50ff76e 100644
--- a/.claude-plugin/marketplace.json
+++ b/.claude-plugin/marketplace.json
@@ -6,7 +6,7 @@
   },
   "metadata": {
     "description": "Skills shared by Baoyu for improving daily work efficiency",
-    "version": "1.99.0"
+    "version": "1.99.1"
   },
   "plugins": [
     {
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 677ba2a..b80d5e9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,11 @@
 
 English | [中文](./CHANGELOG.zh.md)
 
+## 1.99.1 - 2026-04-11
+
+### Fixes
+- `baoyu-article-illustrator`: omit `model` field from batch tasks when `--model` is not specified, letting `baoyu-imagine` resolve the default from env/config
+
 ## 1.99.0 - 2026-04-10
 
 ### Features
diff --git a/CHANGELOG.zh.md b/CHANGELOG.zh.md
index 9e8a272..fa188a0 100644
--- a/CHANGELOG.zh.md
+++ b/CHANGELOG.zh.md
@@ -2,6 +2,11 @@
 
 [English](./CHANGELOG.md) | 中文
 
+## 1.99.1 - 2026-04-11
+
+### 修复
+- `baoyu-article-illustrator`：未指定 `--model` 时，批处理任务中不再写入 `model` 字段，改由 `baoyu-imagine` 从环境变量或配置中解析默认值
+
 ## 1.99.0 - 2026-04-10
 
 ### 新功能