diff --git a/.github/workflows/docs-release.yaml b/.github/workflows/docs-release.yaml
index 703f4015..8be80135 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@sha256:67a00b0fc35759d31847b488e16cc37052b195a201c0fa45f6dd7b769a30032a
+        uses: docker://ghcr.io/bjw-s/mdbook:0.4.27@sha256:03890a944525e73aaf139b2b9ba22c1ea709cf03747d643d12730b5eaf695629
         with:
           args: bash -c "cd docs && mdbook build"