diff --git a/.github/workflows/docs.yaml b/.github/workflows/docs.yaml
index 9262258e8d..3d50ee41fa 100644
--- a/.github/workflows/docs.yaml
+++ b/.github/workflows/docs.yaml
@@ -34,7 +34,7 @@ jobs:
           token: "${{ steps.app-token.outputs.token }}"
 
       - name: Build docs
-        uses: docker://ghcr.io/bjw-s/mdbook:0.4.40@sha256:45d5e892790f6ab94820f602a277fe6e0730b50daa4663f83b8ae9d369ca75fc
+        uses: docker://ghcr.io/bjw-s/mdbook:0.4.40@sha256:37ed2f524a372fac0541d78d17446efb50a57afe8faa7ec5cc916541e09e4230
         with:
           args: bash -c "cd docs && mdbook build"