diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a84b0c1..70d5273 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,6 +6,9 @@ on:
     branches:
       - main
 
+permissions:
+  contents: read
+
 jobs:
   test-typescript:
     name: TypeScript Tests