diff --git a/.github/workflows/asv.yml b/.github/workflows/asv.yml
index 662ef0c..ca26919 100644
--- a/.github/workflows/asv.yml
+++ b/.github/workflows/asv.yml
@@ -25,6 +25,7 @@ jobs:
 
       - name: Checkout main branch of the repository
         uses: actions/checkout@v3
+        ref: main
 
       - name: Set up Python 3.10
         uses: actions/setup-python@v4