diff --git a/.ci/Jenkinsfile.crowdin b/.ci/Jenkinsfile.crowdin
index 2cd50058..e3f7fef8 100644
--- a/.ci/Jenkinsfile.crowdin
+++ b/.ci/Jenkinsfile.crowdin
@@ -68,23 +68,14 @@ timestamps {
                   return
                 }
                 sh "git remote add my github.com:${my_user}/${my_repo}.git"
-                // TODO simplify when https://issues.jenkins-ci.org/browse/JENKINS-28335 is fixed
                 if (!pr_mode) {
-                  withCredentials([sshUserPrivateKey(credentialsId: 'baf2df74-935d-40e5-b20f-076e92fa3e9f', keyFileVariable: 'GITHUB_KEY')]) {
-                    sh 'echo ssh -i $GITHUB_KEY -l git -o StrictHostKeyChecking=no \\"\\$@\\" > run_ssh.sh'
-                    sh 'chmod +x run_ssh.sh'
-                    withEnv(['GIT_SSH=run_ssh.sh']) {
-                      sh "git push upstream HEAD:refs/heads/${upstream_branch}"
-                    }
+                  sshagent(credentials: ['baf2df74-935d-40e5-b20f-076e92fa3e9f']) {
+                    sh "git push upstream HEAD:refs/heads/${upstream_branch}"
                   }
                   return
                 }
-                withCredentials([sshUserPrivateKey(credentialsId: '6ef10f80-20dc-4661-af45-52a6e1e15749', keyFileVariable: 'GITHUB_KEY')]) {
-                  sh 'echo ssh -i $GITHUB_KEY -l git -o StrictHostKeyChecking=no \\"\\$@\\" > run_ssh.sh'
-                  sh 'chmod +x run_ssh.sh'
-                  withEnv(['GIT_SSH=run_ssh.sh']) {
-                    sh "git push my HEAD:refs/heads/${my_branch} -f"
-                  }
+                sshagent(credentials: ['6ef10f80-20dc-4661-af45-52a6e1e15749']) {
+                  sh "git push my HEAD:refs/heads/${my_branch} -f"
                 }
                 // Create pull request if it doesn't exist yet
                 withCredentials([string(credentialsId: '7a2546ae-8a29-4eab-921c-6a4803456dce', variable: 'GITHUB_OAUTH_KEY')]) {