diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bfa6421..b11b014 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,4 +1,8 @@
 name: CI
+
+permissions:
+  contents: read
+
 on:
   pull_request:
   push: