diff --git a/.github/workflows/docs-release.yaml b/.github/workflows/docs-release.yaml
index c2128f2d..b0726210 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:0.4.27@sha256:a845e27a4e05e58ad25e5f1f78b2e2bc26547c28c12c61aab017d8c8556cd8eb
+        uses: docker://ghcr.io/bjw-s/mdbook:0.4.27@sha256:4925d1ec1a9fb004bbca3d2c9650ddc9aa511e1f99b627dde4817d72b5b07c1b
         with:
           args: bash -c "cd docs && mdbook build"