diff --git a/.github/workflows/docs-release.yaml b/.github/workflows/docs-release.yaml
index c5b8ca78..8c0c8596 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:0.4.28@sha256:fac4a55aab465c5813e9c483997c4670d240a27aa2be1ff3e48a47cf8a7e55f4
+        uses: docker://ghcr.io/bjw-s/mdbook:0.4.28@sha256:6229624acc4bfdf26baf2a76546d566ec1cfb97662e9da431f48de8c841af91b
         with:
           args: bash -c "cd docs && mdbook build"