diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 77bb0a1..6a1d572 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -29,7 +29,7 @@ jobs:
                   persist-credentials: false
 
             - name: Install mdBook
-              uses: peaceiris/actions-mdbook@948b432f0fddb61de0806565a7222b36e12e2ee3 # v2.0.0
+              uses: peaceiris/actions-mdbook@ee69d230fe19748b7abf22df32acaa93833fad08 # v2.0.0
               with:
                   mdbook-version: "0.4.40"