diff --git a/.github/workflows/ci-observability.yml b/.github/workflows/ci-observability.yml
index 0a87ac52..019aa605 100644
--- a/.github/workflows/ci-observability.yml
+++ b/.github/workflows/ci-observability.yml
@@ -17,6 +17,9 @@ on:
       - .github/workflows/ci-observability.yml
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   observability-validation:
     runs-on: ubuntu-latest