diff --git a/.github/workflows/docs-release.yaml b/.github/workflows/docs-release.yaml
index dda9f9f9..18bc6826 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@sha256:52d6f1d4cb8b261a5f10b2c0e15134827fe889c743238412d3ba8e68b554ae74
+        uses: docker://ghcr.io/bjw-s/mdbook:0.4.34@sha256:ecdbc6ce9fab9bcde916308377685f97a976b57703746bd23c00faf0483ae6ce
         with:
           args: bash -c "cd docs && mdbook build"