diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 69376b36db..2a22c5095f 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -1764,7 +1764,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: Install mdbook
-        uses: taiki-e/install-action@8cca0918f8471c33515202b73f56ab27f2bed283 # v2.87.29
+        uses: taiki-e/install-action@a4d3f3f761dcd95cce1b72cb61cb6d1963438177 # v2.87.30
         env:
           # renovate: datasource=crate depName=mdbook
           MDBOOK_VERSION: "0.5.2"
diff --git a/ci/actions-templates/test-docs-template.yaml b/ci/actions-templates/test-docs-template.yaml
index 000533feca..b8866542fd 100644
--- a/ci/actions-templates/test-docs-template.yaml
+++ b/ci/actions-templates/test-docs-template.yaml
@@ -13,7 +13,7 @@ jobs: # skip-all
         with:
           fetch-depth: 0
       - name: Install mdbook
-        uses: taiki-e/install-action@8cca0918f8471c33515202b73f56ab27f2bed283 # v2.87.29
+        uses: taiki-e/install-action@a4d3f3f761dcd95cce1b72cb61cb6d1963438177 # v2.87.30
         env:
           # renovate: datasource=crate depName=mdbook
           MDBOOK_VERSION: "0.5.2"