diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6f1b189c..c725198e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,6 +7,8 @@ on:
 jobs:
   build-test:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
     env:
       CARGO_TERM_COLOR: always
       CS_ACCESS_TOKEN: ${{ secrets.CS_ACCESS_TOKEN }}