diff --git a/.github/workflows/docs-publish.yaml b/.github/workflows/docs-publish.yaml
index d41c93f445..6680080f64 100644
--- a/.github/workflows/docs-publish.yaml
+++ b/.github/workflows/docs-publish.yaml
@@ -31,7 +31,7 @@ jobs:
           token: ${{ steps.app-token.outputs.token }}
 
       - name: Build docs
-        uses: docker://ghcr.io/bjw-s/mdbook:0.4.40@sha256:8799d4942b3ef54ea44fba75df9cb68163a3cc1ab0ba808602b7d59b7432bd70
+        uses: docker://ghcr.io/bjw-s/mdbook:0.4.40@sha256:1f30f430c161ea77beccaa0628d5102f85adfd78db10c9eb659d8ccffcc1b73c
         with:
           args: bash -c "cd docs && mdbook build"