diff --git a/.github/workflows/deploy-preview.yml b/.github/workflows/deploy-preview.yml
index 08929fa0a..1df26d46d 100644
--- a/.github/workflows/deploy-preview.yml
+++ b/.github/workflows/deploy-preview.yml
@@ -47,7 +47,7 @@ jobs:
 
       - name: Add cdn for images
         run: |
-        sed -i "s#\](/imgs/#\](https://cdn.jsdelivr.us/gh/yangchuansheng/fastgpt-imgs@main/imgs/#g" $(grep -rl "\](/imgs/" docSite/content/docs)
+          sed -i "s#\](/imgs/#\](https://cdn.jsdelivr.us/gh/yangchuansheng/fastgpt-imgs@main/imgs/#g" $(grep -rl "\](/imgs/" docSite/content/docs)
 
       # Step 3 - Install Hugo (specific version)
       - name: Install Hugo