diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 962375bda..0676775c2 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -25,7 +25,7 @@ jobs:
         with:
           docs-folder: "docs_m2met2/"
           pre-build-command: "pip install jinja2 sphinx_rtd_theme myst-parser"
-            - uses: ammaraskar/sphinx-action@master
+      - uses: ammaraskar/sphinx-action@master
         with:
           docs-folder: "docs_m2met2_cn/"
           pre-build-command: "pip install jinja2 sphinx_rtd_theme myst-parser"
@@ -54,4 +54,4 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.ACCESS_TOKEN }}
           PUBLISH_BRANCH: gh-pages
-          PUBLISH_DIR: public
\ No newline at end of file
+          PUBLISH_DIR: public