diff --git a/.github/workflows/size-limit.yml b/.github/workflows/size-limit.yml
index 5bd3c0d92..0fac71ba6 100644
--- a/.github/workflows/size-limit.yml
+++ b/.github/workflows/size-limit.yml
@@ -3,6 +3,10 @@ on:
   pull_request:
     branches:
       - master
+
+permissions:
+  pull-requests: read
+
 jobs:
   size:
     runs-on: ubuntu-latest