diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a7bc1ffff0e..d4a210099e0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,6 +1,9 @@
 name: CI
 on: push
 
+permissions:
+  contents: read
+
 jobs:
   CI:
     runs-on: macos-latest