diff --git a/.github/workflows/docs-release.yaml b/.github/workflows/docs-release.yaml
index b4d356ee..5aa15565 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:0.4.34@sha256:8cbef400e1ac526761722274d1b81476838fd26ba62acf4cbd482192558634da
+        uses: docker://ghcr.io/bjw-s/mdbook:0.4.34@sha256:d51bce318437ad6d2d060613e5c8e78e4b846684064a57fe8ce24f7f08cf7ad3
         with:
           args: bash -c "cd docs && mdbook build"