diff --git a/.github/workflows/check-opus-version.yml b/.github/workflows/check-opus-version.yml
index c0a2ee5..fcdf63f 100644
--- a/.github/workflows/check-opus-version.yml
+++ b/.github/workflows/check-opus-version.yml
@@ -1,4 +1,6 @@
 name: Check Opus Version
+permissions:
+  contents: read
 
 on:
   schedule: