diff --git a/tm-monitor/main.go b/tm-monitor/main.go
index b40745f8..bc5b3a66 100644
--- a/tm-monitor/main.go
+++ b/tm-monitor/main.go
@@ -11,7 +11,7 @@ import (
 	monitor "github.com/tendermint/tools/tm-monitor/monitor"
 )
 
-var version = "0.3.1"
+var version = "0.4.0"
 
 var logger = log.NewNopLogger()