diff --git a/Jenkinsfile b/Jenkinsfile
index d8aca6094b..a1a2f1ac3d 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -9,8 +9,7 @@ pipeline {
 
       when {
         anyOf {
-          branch 'master'
-          expression { BRANCH_NAME ==~ /^\d+(.\d+)*$/ }
+          expression { BRANCH_NAME ==~ /^1(.\d+)*$/ }
         }
       }