Change version to 1.4.1-dev
diff --git a/rpc_util.go b/rpc_util.go
index 111003b..3871c98 100644
--- a/rpc_util.go
+++ b/rpc_util.go
@@ -528,6 +528,6 @@
 const SupportPackageIsVersion4 = true
 
 // Version is the current grpc version.
-const Version = "1.4.0"
+const Version = "1.4.1-dev"
 
 const grpcUA = "grpc-go/" + Version