diff --git a/.github/workflows/documentation-pages.yml b/.github/workflows/documentation-pages.yml
index b2ac2f3d..92863e64 100644
--- a/.github/workflows/documentation-pages.yml
+++ b/.github/workflows/documentation-pages.yml
@@ -39,7 +39,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
         with:
-          fetch-depth: 0
+          submodules: 'recursive'
 
       - name: Restore cached mdbook
         uses: actions/cache/restore@v4