diff --git a/.gitea/workflows/snapshot_admin_deploy.yml b/.gitea/workflows/snapshot_admin_deploy.yml
index b63d1ca..1bbe91f 100644
--- a/.gitea/workflows/snapshot_admin_deploy.yml
+++ b/.gitea/workflows/snapshot_admin_deploy.yml
@@ -39,16 +39,16 @@ jobs:
         run: |
           echo "[deploy] setting up SSH and deploying shadow copy"
           mkdir -p ~/.ssh
-          echo "$SSH_PRIVATE_KEY" > ~/.ssh/id_rsa
-          tr -d '\r' < ~/.ssh/id_rsa > ~/.ssh/id_rsa.tmp && mv ~/.ssh/id_rsa.tmp ~/.ssh/id_rsa
-          chmod 600 ~/.ssh/id_rsa
+          echo "$SSH_PRIVATE_KEY" > ~/.ssh/id_ed25519
+          tr -d '\r' < ~/.ssh/id_ed25519 > ~/.ssh/id_ed25519.tmp && mv ~/.ssh/id_ed25519.tmp ~/.ssh/id_ed25519
+          chmod 600 ~/.ssh/id_ed25519
           ssh-keyscan -H 178.104.200.7 >> ~/.ssh/known_hosts
 
           # Upload artifact and deploy script to host
-          ssh kjh2064@178.104.200.7 "mkdir -p /home/kjh2064/tmp"
-          scp quantengine.tar.gz kjh2064@178.104.200.7:/home/kjh2064/tmp/quantengine.tar.gz
+          ssh -i ~/.ssh/id_ed25519 kjh2064@178.104.200.7 "mkdir -p /home/kjh2064/tmp"
+          scp -i ~/.ssh/id_ed25519 quantengine.tar.gz kjh2064@178.104.200.7:/home/kjh2064/tmp/quantengine.tar.gz
           
           # Execute hot deploy script
-          ssh kjh2064@178.104.200.7 "chmod +x /home/kjh2064/tmp/deploy.sh 2>/dev/null || true"
-          scp tools/deploy_quantengine.sh kjh2064@178.104.200.7:/home/kjh2064/tmp/deploy.sh
-          ssh kjh2064@178.104.200.7 "chmod +x /home/kjh2064/tmp/deploy.sh && /home/kjh2064/tmp/deploy.sh"
+          ssh -i ~/.ssh/id_ed25519 kjh2064@178.104.200.7 "chmod +x /home/kjh2064/tmp/deploy.sh 2>/dev/null || true"
+          scp -i ~/.ssh/id_ed25519 tools/deploy_quantengine.sh kjh2064@178.104.200.7:/home/kjh2064/tmp/deploy.sh
+          ssh -i ~/.ssh/id_ed25519 kjh2064@178.104.200.7 "chmod +x /home/kjh2064/tmp/deploy.sh && /home/kjh2064/tmp/deploy.sh"