diff --git a/.github/workflows/timeline-check.yml b/.github/workflows/timeline-check.yml
index 8c2056e306..225685857f 100644
--- a/.github/workflows/timeline-check.yml
+++ b/.github/workflows/timeline-check.yml
@@ -4,6 +4,8 @@ on:
   pull_request:
     types: [labeled, unlabeled, opened, synchronize, reopened]
   merge_group:
+permissions:
+  contents: write
 
 jobs:
   assign-pr-number: