diff --git a/.github/workflows/phpstan.yml b/.github/workflows/phpstan.yml
index d5db2f1..51f46a2 100644
--- a/.github/workflows/phpstan.yml
+++ b/.github/workflows/phpstan.yml
@@ -10,6 +10,8 @@ on:
 jobs:
   phpstan:
     name: phpstan
+    permissions:
+      contents: read
     runs-on: ubuntu-latest
     timeout-minutes: 5
     steps: