diff --git a/.github/workflows/docs-release.yaml b/.github/workflows/docs-release.yaml
index 1d71315e..fd10d35d 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@sha256:5c2919d2b3989b75142eea1c231190531fc4b87e51ad3fb202482f18554ece0e
+        uses: docker://ghcr.io/bjw-s/mdbook:0.4.28@sha256:f4c8dc1e62514d3bb5450906701bcae4c108dc3fe695c7b14165c794b29f9ee6
         with:
           args: bash -c "cd docs && mdbook build"