diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f5e4351..4cfa745 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,6 +8,8 @@ on:
 jobs:
   ci:
     runs-on: ${{ matrix.os }}
+    permissions:
+      contents: read
     strategy:
       fail-fast: false
       matrix: