diff --git a/.github/workflows/markdownlint.yml b/.github/workflows/markdownlint.yml
index 1ffb66f..e1632bc 100644
--- a/.github/workflows/markdownlint.yml
+++ b/.github/workflows/markdownlint.yml
@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Check out code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v6
     - name: Lint markdown
       uses: DavidAnson/markdownlint-cli2-action@v19
       with: