diff --git a/.github/workflows/extract-classnames.yml b/.github/workflows/extract-classnames.yml
index 6514b118..599c4c43 100644
--- a/.github/workflows/extract-classnames.yml
+++ b/.github/workflows/extract-classnames.yml
@@ -6,6 +6,9 @@ on:
       - "features/**.js"
   workflow_dispatch:
 
+permissions:
+  contents: write
+
 jobs:
   extract:
     if: github.repository == 'STForScratch/ScratchTools'