diff --git a/Jenkinsfile b/Jenkinsfile
index 08e1c7a..81c5238 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -14,8 +14,9 @@ pipeline {
     stages {
         stage('Checkout') {
             steps {
-                sshagent(credentials: ['gitea-ssh']) {
+                withCredentials([sshUserPrivateKey(credentialsId: 'gitea-ssh', keyFileVariable: 'GIT_KEYFILE')]) {
                     sh '''
+                        export GIT_SSH_COMMAND="ssh -i $GIT_KEYFILE -o StrictHostKeyChecking=accept-new"
                         if [ -d .git ]; then
                             git remote set-url origin ssh://git@git.mandelblog.com:2222/salt/mandelstudio.git
                             git fetch --tags --force --progress origin