diff --git a/.github/workflows/generate-sitemap.yml b/.github/workflows/generate-sitemap.yml
index d1c5091..b5f1419 100644
--- a/.github/workflows/generate-sitemap.yml
+++ b/.github/workflows/generate-sitemap.yml
@@ -14,7 +14,10 @@ on:
       - '**/*.md'
   workflow_dispatch: # 手动运行
 
-permissions: {}
+# 相关文档: https://docs.github.com/zh/actions/writing-workflows/choosing-what-your-workflow-does/controlling-permissions-for-github_token
+permissions:
+  contents: write # 允许修改仓库内容，例如提交、发行版等
+  pull-requests: write # 允许创建和修改 PR，如果您使用更新方式“提交”可以不给这个权限
 
 jobs:
   generate_sitemap: