diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a0dd59f..81afb64 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,4 +1,6 @@
 name: Build
+permissions:
+  contents: read
 
 on: [push, pull_request]