diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 93e9dc0..1e071a2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -4,6 +4,9 @@
 
 name: CI
 
+permissions:
+  contents: read
+
 on:
   push:
     branches: [main]