diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 129c4b9..1202bb2 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -41,6 +41,6 @@ jobs:
         with:
           fetch-depth: 0
       - name: "Check Markdown documents"
-        uses: DavidAnson/markdownlint-cli2-action@992badcdf24e3b8eb7e87ff9287fe931bcb00c6e # v20.0.0
+        uses: DavidAnson/markdownlint-cli2-action@30a0e04f1870d58f8d717450cc6134995f993c63 # v21.0.0
         with:
           globs: '**/*.md'