diff --git a/.github/workflows/generate-doc.yml b/.github/workflows/generate-doc.yml
index b6c279d..afc75a8 100644
--- a/.github/workflows/generate-doc.yml
+++ b/.github/workflows/generate-doc.yml
@@ -56,7 +56,7 @@ jobs:
             ]
       - uses: denoland/setup-deno@5e01c016a857a4dbb5afe9d0f9733cd472cba985 # v1.5.1
       - run: deno fmt README.md
-      - uses: DavidAnson/markdownlint-cli2-action@db43aef879112c3119a410d69f66701e0d530809 # v17.0.0
+      - uses: DavidAnson/markdownlint-cli2-action@eb5ca3ab411449c66620fe7f1b3c9e10547144b0 # v18.0.0
         with:
           fix: true
           globs: "README.md"