diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fed6f6a989..7bef3d0c53 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,6 +9,9 @@ on:
   pull_request:
     branches: [ master ]
 
+permissions:
+  contents: read
+
 jobs:
   build: