diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index d00de3b..316a91e 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -6,6 +6,9 @@ on:
   pull_request:
     branches: [ "main" ]
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest