diff --git a/lib/appenders/gelf.js b/lib/appenders/gelf.js
index e536462..01544f9 100644
--- a/lib/appenders/gelf.js
+++ b/lib/appenders/gelf.js
@@ -101,7 +101,7 @@ function gelfAppender (layout, host, port, hostname, facility) {
     msg.full_message = layout(loggingEvent);
     msg.short_message = msg.full_message;
     
-    msg.version="1.0";
+    msg.version="1.1";
     msg.timestamp = msg.timestamp || new Date().getTime() / 1000; // log should use millisecond 
     msg.host = hostname;
     msg.level = levelMapping[loggingEvent.level || levels.DEBUG];