diff --git a/.github/workflows/docs-publish.yaml b/.github/workflows/docs-publish.yaml
index b3e8ee298..1378b2aa5 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:a956730904aa17df1eef7eebfe1f1281ac36e8a4be9035a70e6a7fb51e449a5e
+        uses: docker://ghcr.io/bjw-s/mdbook:0.4.40@sha256:ab8e99ad9868734800b6c97b6c50f7b535f0c2381b157f693bd9afa955599923
         with:
           args: bash -c "cd docs && mdbook build"