diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 7bde2a3c148e99bacd0e1e80638a9c16b0ea1525..2f00f7592b84c01d2fc08ba21f59b35405dceb65 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -115,6 +115,7 @@ ansible_create_cluster_stage:
     - pwd
     - python3 ./make_files.py ./inventory.yml ./infra/os_vars.yml ./vars/versions.yml
     - ssh-keygen -R `cat ssh.cfg  | grep Proxy | cut -f 2 -d "@"`
+    - ssh-keyscan -H `cat ssh.cfg  | grep Proxy | cut -f 2 -d "@"` >> ~/.ssh/known_hosts
       #- ssh `cat ssh.cfg  | grep Proxy | cut -f 2 -d "="` -i ./tmp_key -o StrictHostKeyChecking=no exit 0
     - export ANSIBLE_HOST_KEY_CHECKING=False
     - ansible-playbook -i inventory.yml --key-file ./tmp_key  upgrade_and_reboot.yml