diff --git a/.github/workflows/clang-format.yml b/.github/workflows/clang-format.yml
index 36388d688..32b2ff116 100644
--- a/.github/workflows/clang-format.yml
+++ b/.github/workflows/clang-format.yml
@@ -2,6 +2,9 @@ name: Lint
 
 on: [push]
 
+permissions:
+  contents: read
+
 jobs:
   clang-format: