diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index bccf228..62b8888 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -84,6 +84,8 @@ jobs:
   coverage:
     name: coverage & coveralls
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable