diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index 68ed803..87c642e 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -33,7 +33,7 @@ jobs:
         run: opam install -d . --deps-only
 
       - name: Build
-        run: opam exec -- dune build @doc
+        run: opam exec -- dune build @doc --ignore-promoted-rules
 
       - name: Deploy
         uses: peaceiris/actions-gh-pages@v3