diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index f6cb165d..3dec84a9 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -19,18 +19,21 @@ jobs:
 # Steps represent a sequence of tasks that will be executed as part of the job
 steps:
 # Checks-out your repository under $GITHUB_WORKSPACE, so marp-action can access it
- - uses: actions/checkout@v2
+ - uses: actions/checkout@v3
 
 - name: Setup Source
 run: mkdir docs && cp os-lecs.md docs/index.md && cp -r lec[1-9]* docs && cp course-intro.md docs/course-intro.md
 
 - name: Marp Build (docs folder)
- uses: docker://marpteam/marp-cli:v1.7.0
+ uses: docker://marpteam/marp-cli:v1.7.2
 with:
- args: --html -I docs/ -o build/
+ args: -allow-local-files --html -I docs/ -o build/
 env:
 MARP_USER: root:root
 
+ - name: copy imgs
+ run: cp -r lec[1-9]*/figs build/
+
 - name: Deploy production
 if: ${{ github.event_name == 'push' }}
 uses: JamesIves/github-pages-deploy-action@v4
diff --git a/lec1/p1-intro.md b/lec1/p1-intro.md
index f670587b..1d4dda11 100644
--- a/lec1/p1-intro.md
+++ b/lec1/p1-intro.md
@@ -102,7 +102,7 @@ backgroundColor: white
 - [实验代码](https://github.com/LearningOS/rCore-Tutorial-Code-2023S)
 - [测试用例](https://github.com/LearningOS/rCore-Tutorial-Test-2023S)
 
-#### uCore和rCore实验[讲解视频(须更新)](https://www.yuque.com/docs/share/1b5b9260-8a80-4427-a612-78ec72b37e5f)
+#### uCore和rCore实验[讲解视频(逐步更新)](https://www.yuque.com/docs/share/1b5b9260-8a80-4427-a612-78ec72b37e5f)
 
 ---
 
</div><div class="naked_ctrl">
<form action="/index.cgi/contrast" 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://github.com/LearningOS/os-lectures/compare/master...test.diff">(-&gt;オリジナル)</a>
/ <label>アドレス: <input type="text" name="naked_post_url" value="https://github.com/LearningOS/os-lectures/compare/master...test.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" selected="selected">配色反転</option>
<option value="larger-text">文字拡大</option>
<option value="mobile">モバイル</option>
</select>
<input type="submit" value="表示" />
</p>
</form>
</div>