diff --git a/.github/workflows/terratest.yml b/.github/workflows/terratest.yml
index 0894f45..5788b63 100644
--- a/.github/workflows/terratest.yml
+++ b/.github/workflows/terratest.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: markdownlint-cli2-action
-        uses: DavidAnson/markdownlint-cli2-action@v9
+        uses: DavidAnson/markdownlint-cli2-action@v15
         with:
           config: ./.markdownlint-cli2.yaml