diff --git a/javascript/zabbix.mailGraph.js b/javascript/zabbix.mailGraph.js
index 8037aef..4c9d765 100644
--- a/javascript/zabbix.mailGraph.js
+++ b/javascript/zabbix.mailGraph.js
@@ -1,4 +1,4 @@
-// mailGraph v2.16
+// mailGraph v2.20
 
 // Function to test string
 function isJSON(str) {