diff --git a/.github/workflows/binder-on-pr.yml b/.github/workflows/binder-on-pr.yml
index 07d19164ab..13d5e3457d 100644
--- a/.github/workflows/binder-on-pr.yml
+++ b/.github/workflows/binder-on-pr.yml
@@ -4,6 +4,10 @@ on:
   pull_request_target:
     types: [opened]
 
+permissions:
+  pull-requests:
+    write
+
 jobs:
   binder:
     runs-on: ubuntu-latest