diff --git a/.github/workflows/lint-unit.yml b/.github/workflows/lint-unit.yml
index 24f7f9e..090745c 100644
--- a/.github/workflows/lint-unit.yml
+++ b/.github/workflows/lint-unit.yml
@@ -64,7 +64,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Markdown lint
-        uses: DavidAnson/markdownlint-cli2-action@v18
+        uses: DavidAnson/markdownlint-cli2-action@v19
         with:
           globs: "**/*.md"