diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index 16bfce3..bc44f1e 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -1,12 +1,14 @@
+---
+
 name: Documentation
 
-on:
+on:  # yamllint disable-line rule:truthy
   push:
-    branches: [ master, simplesamlphp-* ]
+    branches: [master, simplesamlphp-*]
     paths:
       - '**.md'
   pull_request:
-    branches: [ master, simplesamlphp-* ]
+    branches: [master, simplesamlphp-*]
     paths:
       - '**.md'
 
@@ -19,7 +21,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Lint markdown files
-        uses: nosborn/github-action-markdown-cli@v3.1.0
+        uses: nosborn/github-action-markdown-cli@v3.2.0
         with:
           files: .
           ignore_path: .markdownlintignore