diff --git a/.github/workflows/docs-release.yaml b/.github/workflows/docs-release.yaml
index 02e723c9..c2128f2d 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:b204172882f6d3a7a675a40c5edffdbe252fb4fbe5c0cba7a39b985756681173
+        uses: docker://ghcr.io/bjw-s/mdbook:0.4.27@sha256:a845e27a4e05e58ad25e5f1f78b2e2bc26547c28c12c61aab017d8c8556cd8eb
         with:
           args: bash -c "cd docs && mdbook build"