diff --git a/Jenkinsfile b/Jenkinsfile
index f955aa9db69a908e1bd5e05e4958d0102172dae0..548697f3a2cf40cb6bd910ec9dabca0238159e5b 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -362,7 +362,7 @@ String generateHelmChartVersion() {
         chartVersion += "-${env.BRANCH_NAME}"
     }
 
-    return chartVersion
+    return chartVersion.replaceAll("_", "-")
 }
 
 Void tagAndPushDockerImage(String newTag){