diff --git a/Jenkinsfile b/Jenkinsfile
index cb1be88..8218bcb 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -43,7 +43,25 @@ pipeline {
             steps {
                 script {
                    echo 'deploying docker image to EC2...'
-                   echo 'bla'
+                }
+            }
+        }
+        stage('commit version update') {
+            steps {
+                script {
+                    withCredentials([usernamePassword(credentialsId: 'gitlab-credentials', passwordVariable: 'PASS', usernameVariable: 'USER')]) {
+                        sh 'git config --global user.email "jenkins@example.com"'
+                        sh 'git config --global user.name "jenkins"'
+
+                        sh 'git status'
+                        sh 'git branch'
+                        sh 'git config --list'
+
+                        sh "git remote set-url origin https://${USER}:${PASS}@gitlab.com/nanuchi/java-maven-app.git"
+                        sh 'git add .'
+                        sh 'git commit -m "ci: version bump"'
+                        sh 'git push origin HEAD:jenkins-jobs'
+                    }
                 }
             }
         }