diff --git a/.github/workflows/update-docs-index.yml b/.github/workflows/update-docs-index.yml
index 8cbbf60..4a3298d 100644
--- a/.github/workflows/update-docs-index.yml
+++ b/.github/workflows/update-docs-index.yml
@@ -9,6 +9,8 @@ on:
 jobs:
   update-index:
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
 
     steps:
       - name: Checkout repository