diff --git a/protocol/jsonrpc/options.go b/protocol/jsonrpc/options.go
index da33262..e03aa23 100644
--- a/protocol/jsonrpc/options.go
+++ b/protocol/jsonrpc/options.go
@@ -5,8 +5,8 @@ import (
 )
 
 type (
-	OnRequestFunc func(soc gws.Socket, method string, params interface{}) (interface{}, error)
-	OnNotifyFunc  func(soc gws.Socket, method string, params interface{}) error
+	OnRequestFunc func(soc gws.Socket, method string, params []string) (interface{}, error)
+	OnNotifyFunc  func(soc gws.Socket, method string, params []string) error
 )
 
 // ClientOptions is configuration of the websocket server
@@ -18,13 +18,13 @@ type Options struct {
 // Validate validates the configuration
 func (o *Options) Validate() *Options {
 	if o.OnRequest == nil {
-		o.OnRequest = func(soc gws.Socket, method string, params interface{}) (interface{}, error) {
+		o.OnRequest = func(soc gws.Socket, method string, params []string) (interface{}, error) {
 			return nil, nil
 		}
 	}
 
 	if o.OnNotify == nil {
-		o.OnNotify = func(soc gws.Socket, method string, params interface{}) error {
+		o.OnNotify = func(soc gws.Socket, method string, params []string) error {
 			return nil
 		}
 	}