diff --git a/Jenkinsfile b/Jenkinsfile
index e3f3fdf..0a001d1 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -13,6 +13,9 @@ pipeline {
             }
         }
         stage("publish") {
+            when {
+            branch '**/master'
+            }
             steps {
                 withCredentials([usernamePassword(credentialsId: 'rs-git-package-registry-ydeng', passwordVariable: 'PASS', usernameVariable: 'USER')]) {
                     sh "python -m twine upload --repository-url https://git.reslate.systems/api/packages/${USER}/pypi -u ${USER} -p ${PASS} --non-interactive --disable-progress-bar --verbose dist/*"