diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 42f81dd11..8be88c860 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -5,6 +5,10 @@ on:
     branches: [ master ]
   pull_request:
     branches: [ master ]
+    
+permissions:
+  contents: read
+  
 jobs:
   build:
     runs-on: ${{ matrix.os }}