diff --git a/.github/workflows/docs-release.yaml b/.github/workflows/docs-release.yaml
index 73d12ee2..65c330a0 100644
--- a/.github/workflows/docs-release.yaml
+++ b/.github/workflows/docs-release.yaml
@@ -30,7 +30,7 @@ jobs:
           fetch-depth: 0
 
       - name: Build docs
-        uses: docker://ghcr.io/bjw-s/mdbook:0.4.30@sha256:ce6be690c241873343d6c5d7e85e94a13658a296725a33b23b51247d5cef3f00
+        uses: docker://ghcr.io/bjw-s/mdbook:0.4.30@sha256:c0674944160aaff30a57eb59ecd94128461e663c1e77a6b54208add3b72c6561
         with:
           args: bash -c "cd docs && mdbook build"