diff --git a/Jenkinsfile b/Jenkinsfile
index 2efb063..33085aa 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -69,6 +69,7 @@ pipeline {
         stage ('Update cluster') {
           when {
             allOf {
+                expression { return env.BRANCH_NAME == 'master' }
                 expression { return params.SKIP_PUBLISH != true }
                 expression { return params.SKIP_CLUSTER_UPDATE != true }
             }