diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index b2792e87de..e02d931e28 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -17,7 +17,7 @@ jobs:
           fetch-depth: 0
       - name: Install latest mdbook
         run: |
-          tag="v0.4.35"
+          tag="v0.5.0-beta.1"
           url="https://github.com/rust-lang/mdbook/releases/download/${tag}/mdbook-${tag}-x86_64-unknown-linux-gnu.tar.gz"
           mkdir mdbook
           curl -sSL $url | tar -xz --directory=./mdbook
diff --git a/docs/fix_links.py b/docs/fix_links.py
index 6e2eaec485..3a4184b72c 100644
--- a/docs/fix_links.py
+++ b/docs/fix_links.py
@@ -46,6 +46,6 @@ if __name__ == '__main__':
             sys.exit(0)
 
     context, book = json.load(sys.stdin)
-    proc_items(book['sections'])
+    proc_items(book['items'])
 
     print(json.dumps(book))