diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 874ebdd590..b2792e87de 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=$(curl 'https://api.github.com/repos/rust-lang/mdbook/releases/latest' | jq -r '.tag_name')
+          tag="v0.4.35"
           url="https://github.com/rust-lang/mdbook/releases/download/${tag}/mdbook-${tag}-x86_64-unknown-linux-gnu.tar.gz"
           mkdir mdbook
           curl -sSL $url | tar -xz --directory=./mdbook