diff --git a/.github/workflows/arm64-build-checks.yml b/.github/workflows/arm64-build-checks.yml
index d3cf532d59..e0d374ea77 100644
--- a/.github/workflows/arm64-build-checks.yml
+++ b/.github/workflows/arm64-build-checks.yml
@@ -2,6 +2,9 @@ name: arm64 build checks
 
 on: workflow_dispatch
 
+permissions:
+  contents: read # to fetch code (actions/checkout)
+
 jobs:
   build: