diff --git a/build/prod/Jenkinsfile b/build/prod/Jenkinsfile
index 29e1eb9..95e6ad9 100644
--- a/build/prod/Jenkinsfile
+++ b/build/prod/Jenkinsfile
@@ -1,4 +1,17 @@
 stage ('production build') {
-    sh 'npm run build:prod';
-    sh 'ls dist';
+    script {
+        def tag = sh(returnStdout: true, script: "git tag --contains").trim()
+        def branchName = sh(returnStdout: true, script: "git rev-parse --abbrev-ref HEAD").trim()
+
+        if (tag) {
+            echo 'found tag ' + tag
+            def tagNoV = tag.substring(1)
+            sh "VERSION=${tagNoV} npm run build:prod";
+        } else {
+            echo 'tag not found'
+            sh "VERSION=master npm run build:prod"
+        }
+
+        sh 'ls dist';
+    }
 }