diff --git a/.github/workflows/build-test.yml b/.github/workflows/build-test.yml
index bc0e9cfd5..c5764b64f 100644
--- a/.github/workflows/build-test.yml
+++ b/.github/workflows/build-test.yml
@@ -15,6 +15,8 @@ on:
       - genMatrix.js
       - ".github/workflows/build-test.yml"
 
+permissions: read-all
+
 jobs:
   gen-matrix:
     name: generate-matrix