diff --git a/.github/workflows/docs-release.yaml b/.github/workflows/docs-release.yaml
index e8988921..87f69875 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:0.4.25@sha256:0b570d037c16423526fd01c43e99a316444bb0a96420187ded21273fa223d853
+        uses: docker://ghcr.io/bjw-s/mdbook:0.4.27@sha256:0da6d338d0fa5e37afd16db359a2194ed0324c80d9da2ddd657ebed0cc56a26e
         with:
           args: bash -c "cd docs && mdbook build"