diff --git a/.github/workflows/mypy_primer.yml b/.github/workflows/mypy_primer.yml
index af42b94f6..007a78278 100644
--- a/.github/workflows/mypy_primer.yml
+++ b/.github/workflows/mypy_primer.yml
@@ -63,7 +63,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: mypy_primer
     permissions:
-      contents: read
+      contents: write
       pull-requests: write
     steps:
       - name: Download diffs