diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 297724f4e..43e02f9a4 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -6,6 +6,9 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}-${{ github.event_name }}
   cancel-in-progress: true
 
+permissions:
+  contents: read
+
 jobs:
 
   check-file-encoding: