diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index a566c40..80756fd 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -13,6 +13,7 @@ jobs:
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
+          ref: main
           fetch-depth: 0
           fetch-tags: true
       - uses: ./.github/actions/ci-setup