diff --git a/.github/workflows/docs.yaml b/.github/workflows/docs.yaml
index 9f916df6..ff457b80 100644
--- a/.github/workflows/docs.yaml
+++ b/.github/workflows/docs.yaml
@@ -31,6 +31,8 @@ jobs:
         uses: actions/checkout@v3
       - name: Setup Pages
         uses: actions/configure-pages@v3
+      - name: Install mdbook
+        run: cargo install mdbook
       - name: Generate rust docs
         run: |
           echo "Generating docs..."