diff --git a/.github/workflows/mdbook.yml b/.github/workflows/mdbook.yml
index e208b63..462c2b0 100644
--- a/.github/workflows/mdbook.yml
+++ b/.github/workflows/mdbook.yml
@@ -55,6 +55,8 @@ jobs:
       - name: Install mdBook
         run: |
           cargo install --version ${MDBOOK_VERSION} mdbook
+          cargo install mdbook-alerts
+          cargo install mdbook-skill-tree
       - name: Setup Pages
         id: pages
         uses: actions/configure-pages@v5