diff --git a/public/teaser.png b/public/teaser.png
deleted file mode 100644
index 2a845d6..0000000
Binary files a/public/teaser.png and /dev/null differ
diff --git a/template.yaml b/template.yaml
index 3c8b996..aff0f94 100644
--- a/template.yaml
+++ b/template.yaml
@@ -44,7 +44,7 @@ authors:
     affiliation: [6]
     position: professor
     url: https://scholar.google.com/citations?user=mJwzYNwAAAAJ
-contact_ids: ['github', 1] #=> github issues, contact@sinicx.com, 2nd author
+contact_ids: ['github'] #=> github issues, contact@sinicx.com, 2nd author
 affiliations:
   - OMRON SINIC X Corporation
   - Tohoku University