diff --git a/.github/workflows/docs-release.yaml b/.github/workflows/docs-release.yaml
index f30084e2..4b11620a 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@sha256:62e0fe58acf5376cf4877dc2f4d44e2730843d238356559ccb5553884d52b80c
+        uses: docker://ghcr.io/bjw-s/mdbook:0.4.27@sha256:3a869ba18eb6fba5108c1fec231b864fc282456a152c28ace89b1ceee5d93995
         with:
           args: bash -c "cd docs && mdbook build"