diff --git a/.github/workflows/prepare-release.yml b/.github/workflows/prepare-release.yml
index 3d31a4a377..835e88938f 100644
--- a/.github/workflows/prepare-release.yml
+++ b/.github/workflows/prepare-release.yml
@@ -59,6 +59,7 @@ jobs:
         with:
           token: ${{ steps.generate-token.outputs.token }}
           persist-credentials: true
+          ref: main
 
       - name: Install uv
         uses: astral-sh/setup-uv@d4b2f3b6ecc6e67c4457f6d3e41ec42d3d0fcb86 # v5.4.2