diff --git a/.github/workflows/builds.yml b/.github/workflows/builds.yml
index 2f77aa21..a9490809 100644
--- a/.github/workflows/builds.yml
+++ b/.github/workflows/builds.yml
@@ -6,6 +6,9 @@ on:
   pull_request:
     branches: [master]
 
+permissions:
+  contents: read
+
 jobs:
   run:
     name: Test on ${{ matrix.os }} - ${{ matrix.version }}