diff --git a/.github/workflows/markdown.yml b/.github/workflows/markdown.yml
index 3890264..2086e56 100644
--- a/.github/workflows/markdown.yml
+++ b/.github/workflows/markdown.yml
@@ -7,6 +7,9 @@ on:
     branches: ["master"]
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   markdown-lint-and-typos:
     runs-on: ubuntu-latest