diff --git a/.github/workflows/format.yml b/.github/workflows/format.yml
index 6513a95..56f48a9 100644
--- a/.github/workflows/format.yml
+++ b/.github/workflows/format.yml
@@ -14,6 +14,9 @@ jobs:
 
     runs-on: ${{ matrix.operating-system }}
 
+    permissions:
+      contents: write
+
     steps:
       - name: Checkout code
         uses: actions/checkout@v2