diff --git a/check_ambari_cluster_version.pl b/check_ambari_cluster_version.pl
index cb528afe0..4a8da16a1 100755
--- a/check_ambari_cluster_version.pl
+++ b/check_ambari_cluster_version.pl
@@ -11,7 +11,7 @@
 
 $DESCRIPTION = "Nagios Plugin to check an Ambari managed Cluster is on the right HDP version via Ambari REST API
 
-Tested on Ambari 2.1.0, 2.1.2 on Hortonworks HDP 2.2, 2.3";
+Tested on Ambari 2.1.0, 2.1.2, 2.2.1 on Hortonworks HDP 2.2, 2.3, 2.4";
 
 $VERSION = "0.1";