diff --git a/.github/workflows/deploy-testing.yaml b/.github/workflows/deploy-testing.yaml
index 1af6e495..7fbf8538 100644
--- a/.github/workflows/deploy-testing.yaml
+++ b/.github/workflows/deploy-testing.yaml
@@ -37,7 +37,7 @@ jobs:
         mkdir -p ~/.ssh/
         sed -E 's/(-+(BEGIN|END) OPENSSH PRIVATE KEY-+) *| +/\1\n/g' <<< "$SSH_KEY" > ~/.ssh/id_ed25519
         chmod 400 ~/.ssh/id_ed25519
-        ssh-keyscan $TS_HOST >> ~/.ssh/known_hosts
+        retries=5; until ssh-keyscan $TS_HOST >> ~/.ssh/known_hosts || [ $retries -eq 0 ]; do ((retries--)); sleep 5; done
 
     - name: Install ansible
       run: |