diff --git a/glide.yaml b/glide.yaml
index 8d495b7..12cdd12 100644
--- a/glide.yaml
+++ b/glide.yaml
@@ -6,3 +6,5 @@ import:
 - package: gopkg.in/natefinch/npipe.v2
 - package: git.loafle.net/commons_go/websocket_fasthttp
 - package: git.loafle.net/commons_go/util
+- package: github.com/json-iterator/go
+  version: 1.1.3
diff --git a/protocol/json/client.go b/protocol/json/client.go
index 3ead2d6..63dfb3c 100644
--- a/protocol/json/client.go
+++ b/protocol/json/client.go
@@ -1,13 +1,15 @@
 package json
 
 import (
-	"encoding/json"
 	"io"
 
 	"git.loafle.net/commons_go/rpc/codec"
 	"git.loafle.net/commons_go/rpc/protocol"
+	jsoniter "github.com/json-iterator/go"
 )
 
+var json = jsoniter.ConfigCompatibleWithStandardLibrary
+
 // ----------------------------------------------------------------------------
 // Codec
 // ----------------------------------------------------------------------------
diff --git a/protocol/json/client_notification.go b/protocol/json/client_notification.go
index 0c96da2..0065a85 100644
--- a/protocol/json/client_notification.go
+++ b/protocol/json/client_notification.go
@@ -1,13 +1,14 @@
 package json
 
 import (
-	"encoding/json"
-
 	"git.loafle.net/commons_go/rpc/codec"
 	crp "git.loafle.net/commons_go/rpc/protocol"
 	cuej "git.loafle.net/commons_go/util/encoding/json"
+	jsoniter "github.com/json-iterator/go"
 )
 
+var json = jsoniter.ConfigCompatibleWithStandardLibrary
+
 // ----------------------------------------------------------------------------
 // ClientNotificationCodec
 // ----------------------------------------------------------------------------
diff --git a/protocol/json/client_response.go b/protocol/json/client_response.go
index 6a2d59b..130c365 100644
--- a/protocol/json/client_response.go
+++ b/protocol/json/client_response.go
@@ -1,15 +1,17 @@
 package json
 
 import (
-	"encoding/json"
 	"fmt"
 	"io"
 
 	"git.loafle.net/commons_go/rpc/codec"
 	"git.loafle.net/commons_go/rpc/protocol"
 	crp "git.loafle.net/commons_go/rpc/protocol"
+	jsoniter "github.com/json-iterator/go"
 )
 
+var json = jsoniter.ConfigCompatibleWithStandardLibrary
+
 // ----------------------------------------------------------------------------
 // ClientResponseCodec
 // ----------------------------------------------------------------------------
diff --git a/protocol/json/server.go b/protocol/json/server.go
index cbc38f9..78d259e 100644
--- a/protocol/json/server.go
+++ b/protocol/json/server.go
@@ -1,13 +1,15 @@
 package json
 
 import (
-	"encoding/json"
 	"io"
 
 	"git.loafle.net/commons_go/rpc/codec"
 	"git.loafle.net/commons_go/rpc/protocol"
+	jsoniter "github.com/json-iterator/go"
 )
 
+var json = jsoniter.ConfigCompatibleWithStandardLibrary
+
 var null = json.RawMessage([]byte("null"))
 
 // ----------------------------------------------------------------------------
diff --git a/protocol/json/server_request.go b/protocol/json/server_request.go
index 9f0d955..865f443 100644
--- a/protocol/json/server_request.go
+++ b/protocol/json/server_request.go
@@ -1,15 +1,17 @@
 package json
 
 import (
-	"encoding/json"
 	"io"
 
 	"git.loafle.net/commons_go/rpc/codec"
 	"git.loafle.net/commons_go/rpc/protocol"
 	crp "git.loafle.net/commons_go/rpc/protocol"
 	cuej "git.loafle.net/commons_go/util/encoding/json"
+	jsoniter "github.com/json-iterator/go"
 )
 
+var json = jsoniter.ConfigCompatibleWithStandardLibrary
+
 // ----------------------------------------------------------------------------
 // Request
 // ----------------------------------------------------------------------------
diff --git a/protocol/json/util.go b/protocol/json/util.go
index 43695d1..dd20139 100644
--- a/protocol/json/util.go
+++ b/protocol/json/util.go
@@ -1,13 +1,16 @@
 package json
 
 import (
-	"encoding/json"
 	"fmt"
 	"reflect"
 
+	jsoniter "github.com/json-iterator/go"
+
 	cur "git.loafle.net/commons_go/util/reflect"
 )
 
+var json = jsoniter.ConfigCompatibleWithStandardLibrary
+
 func convertParamsToStringArray(params []interface{}) ([]string, error) {
 	var values []string
 	if nil == params || 0 == len(params) {