Change version to 1.6.1-dev
diff --git a/rpc_util.go b/rpc_util.go
index 9ba1ce0..74a47da 100644
--- a/rpc_util.go
+++ b/rpc_util.go
@@ -510,6 +510,6 @@
 const SupportPackageIsVersion4 = true
 
 // Version is the current grpc version.
-const Version = "1.6.0"
+const Version = "1.6.1-dev"
 
 const grpcUA = "grpc-go/" + Version