diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 029d5a7fc10..ab3fb8b4a0d 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -6,6 +6,9 @@ on:
   pull_request:
     branches: [ master ]
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ${{ matrix.os }}