diff --git a/.build.yml b/.build.yml
index 2da0b80..813c799 100644
--- a/.build.yml
+++ b/.build.yml
@@ -11,4 +11,5 @@ tasks:
       cd blog
       hugo --baseURL https://mzhang.io
   - upload: |
-      rsync -azP public/ sourcehutBuilds@mzhang.io:/mnt/storage/svcdata/blog-public
+      echo "happysky.mzhang.io ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIBzBZ+QmM4EO3Fwc1ZcvWV2IY9VF04T0H9brorGj9Udp" >> ~/.ssh/known_hosts
+      rsync -azvrP public/ sourcehutBuilds@mzhang.io:/mnt/storage/svcdata/blog-public