diff --git a/.github/workflows/docs-release.yaml b/.github/workflows/docs-release.yaml
index 1258891e..258a71b3 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:f870264beec118a55323cadee5b781a44a6a8c21311ba795ded5f01e32236801
+        uses: docker://ghcr.io/bjw-s/mdbook:0.4.28@sha256:81d7daa51ee64402ac9f3c44dc58a06034e8706a57b013dd99e4d5fe9ca1a01a
         with:
           args: bash -c "cd docs && mdbook build"