diff --git a/.github/workflows/get-backend-memory.yml b/.github/workflows/get-backend-memory.yml
index 49e490336c..6f36c088f1 100644
--- a/.github/workflows/get-backend-memory.yml
+++ b/.github/workflows/get-backend-memory.yml
@@ -72,6 +72,7 @@ jobs:
 
   save-pr-number:
     runs-on: ubuntu-latest
+    permissions: {}
     steps:
       - name: Save PR number
         env: