Change version to 1.9.3-dev
diff --git a/rpc_util.go b/rpc_util.go
index 1a4c288..b778a78 100644
--- a/rpc_util.go
+++ b/rpc_util.go
@@ -500,6 +500,6 @@
 )
 
 // Version is the current grpc version.
-const Version = "1.9.2"
+const Version = "1.9.3-dev"
 
 const grpcUA = "grpc-go/" + Version