diff --git a/go.mod b/go.mod
index 2f7a2820ba7609a111a632aa6c4c5c944d0026d6..4d1f8acbba481269588bbd1128a453ba7ff62c91 100644
--- a/go.mod
+++ b/go.mod
@@ -3,11 +3,8 @@ module github.com/apache/dubbo-go
 require (
 	github.com/Workiva/go-datastructures v1.0.50
 	github.com/afex/hystrix-go v0.0.0-20180502004556-fa1af6a1f4f5
-	github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 // indirect
-	github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d // indirect
 	github.com/aliyun/alibaba-cloud-sdk-go v0.0.0-20190802083043-4cd0c391755e // indirect
-	github.com/apache/dubbo-go-hessian2 v1.2.5-0.20190923055845-e3dd5d131df5
-	github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869
+	github.com/apache/dubbo-go-hessian2 v1.2.5-0.20191029001541-894e45c9aaaa
 	github.com/buger/jsonparser v0.0.0-20181115193947-bf1c66bbce23 // indirect
 	github.com/coreos/bbolt v1.3.3 // indirect
 	github.com/coreos/etcd v3.3.13+incompatible
@@ -15,7 +12,7 @@ require (
 	github.com/coreos/go-systemd v0.0.0-20190719114852-fd7a80b32e1f // indirect
 	github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f // indirect
 	github.com/creasty/defaults v1.3.0
-	github.com/dubbogo/getty v1.3.0
+	github.com/dubbogo/getty v1.3.1
 	github.com/dubbogo/gost v1.3.0
 	github.com/fastly/go-utils v0.0.0-20180712184237-d95a45783239 // indirect
 	github.com/go-errors/errors v1.0.1 // indirect
@@ -38,7 +35,6 @@ require (
 	github.com/nacos-group/nacos-sdk-go v0.0.0-20190723125407-0242d42e3dbb
 	github.com/pkg/errors v0.8.1
 	github.com/prometheus/client_golang v1.1.0 // indirect
-	github.com/prometheus/common v0.6.0
 	github.com/samuel/go-zookeeper v0.0.0-20180130194729-c4fab1ac1bec
 	github.com/satori/go.uuid v1.2.0
 	github.com/smartystreets/goconvey v0.0.0-20190710185942-9d28bd7c0945 // indirect
diff --git a/go.sum b/go.sum
index 3ae72390a6115b032f08924a8141bee04efbb3a8..bcde5b1f80264e46fc5b581732543d19a83cf660 100644
--- a/go.sum
+++ b/go.sum
@@ -31,18 +31,14 @@ github.com/abdullin/seq v0.0.0-20160510034733-d5467c17e7af/go.mod h1:5Jv4cbFiHJM
 github.com/afex/hystrix-go v0.0.0-20180502004556-fa1af6a1f4f5 h1:rFw4nCn9iMW+Vajsk51NtYIcwSTkXr+JGrMd36kTDJw=
 github.com/afex/hystrix-go v0.0.0-20180502004556-fa1af6a1f4f5/go.mod h1:SkGFH1ia65gfNATL8TAiHDNxPzPdmEL5uirI2Uyuz6c=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
-github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 h1:JYp7IbQjafoB+tBA3gMyHYHrpOtNuDiK/uB5uXxq5wM=
-github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
-github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d h1:UQZhZ2O0vMHr2cI+DC1Mbh0TJxzA3RcLoMsFw+aXw7E=
-github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
 github.com/aliyun/alibaba-cloud-sdk-go v0.0.0-20190802083043-4cd0c391755e h1:MSuLXx/mveDbpDNhVrcWTMeV4lbYWKcyO4rH+jAxmX0=
 github.com/aliyun/alibaba-cloud-sdk-go v0.0.0-20190802083043-4cd0c391755e/go.mod h1:myCDvQSzCW+wB1WAlocEru4wMGJxy+vlxHdhegi1CDQ=
 github.com/aliyun/aliyun-oss-go-sdk v0.0.0-20190307165228-86c17b95fcd5/go.mod h1:T/Aws4fEfogEE9v+HPhhw+CntffsBHJ8nXQCwKr0/g8=
-github.com/apache/dubbo-go-hessian2 v1.2.5-0.20190921023740-335b8c601359 h1:ti5HOgxW/aKonsBe4Sj/W3+RMq4Jxl/EAAblROneggg=
-github.com/apache/dubbo-go-hessian2 v1.2.5-0.20190921023740-335b8c601359/go.mod h1:LWnndnrFXZmJLAzoyNAPNHSIJ1KOHVkTSsHgC3YYWlo=
-github.com/apache/dubbo-go-hessian2 v1.2.5-0.20190923055845-e3dd5d131df5 h1:p85EqnwOfcqqayW7OPREn0YJxIPIuEmuBJPezzhtO/M=
-github.com/apache/dubbo-go-hessian2 v1.2.5-0.20190923055845-e3dd5d131df5/go.mod h1:LWnndnrFXZmJLAzoyNAPNHSIJ1KOHVkTSsHgC3YYWlo=
+github.com/apache/dubbo-go-hessian2 v1.2.5-0.20191029001541-894e45c9aaaa h1:11TO1wiM5bvGAVrmfN5atD8gZqUSPE1TBoIs8sI6Abk=
+github.com/apache/dubbo-go-hessian2 v1.2.5-0.20191029001541-894e45c9aaaa/go.mod h1:LWnndnrFXZmJLAzoyNAPNHSIJ1KOHVkTSsHgC3YYWlo=
+github.com/apache/dubbo-go-hessian2 v1.3.0 h1:ZhQYDm8GHqIp6i53T4ZJHQBN11nAYAjxlwoVznfyvD8=
+github.com/apache/dubbo-go-hessian2 v1.3.0/go.mod h1:LWnndnrFXZmJLAzoyNAPNHSIJ1KOHVkTSsHgC3YYWlo=
 github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e h1:QEF07wC0T1rKkctt1RINW/+RMTVmiwxETico2l3gxJA=
 github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
 github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
@@ -110,6 +106,8 @@ github.com/docker/go-units v0.3.3 h1:Xk8S3Xj5sLGlG5g67hJmYMmUgXv5N4PhkjJHHqrwnTk
 github.com/docker/go-units v0.3.3/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
 github.com/dubbogo/getty v1.3.0 h1:GImOCANdts7dlRqi9GMVsZJnfst9EPyjTVTR1AesOD8=
 github.com/dubbogo/getty v1.3.0/go.mod h1:K4b3MkGLf7T+lMgQNFgpg0dI1Wvv1PTisFs1Psf86kU=
+github.com/dubbogo/getty v1.3.1 h1:9fehwTo/D6+z6/+kADMbhbKeMkP80o/3g+XwV5lFLTY=
+github.com/dubbogo/getty v1.3.1/go.mod h1:dtLOEb1v6EMHsQNYRWEACiRLmTWB2kJGUAj1aXayPOg=
 github.com/dubbogo/gost v1.1.1 h1:JCM7vx5edPIjDA5ovJTuzEEXuw2t7xLyrlgi2mi5jHI=
 github.com/dubbogo/gost v1.1.1/go.mod h1:R7wZm1DrmrKGr50mBZVcg6C9ekG8aL5hP+sgWcIDwQg=
 github.com/dubbogo/gost v1.3.0 h1:n90mIUWCPD69BqW8wJ43NDy0RgNxx02aAG4QJcJ785U=
diff --git a/protocol/dubbo/codec_test.go b/protocol/dubbo/codec_test.go
index c192c2294db5597517ace011224e34f8affefb1f..149644a6eadc23a72b672ae9fa653a1991802dc0 100644
--- a/protocol/dubbo/codec_test.go
+++ b/protocol/dubbo/codec_test.go
@@ -70,5 +70,5 @@ func TestDubboPackage_MarshalAndUnmarshal(t *testing.T) {
 	assert.Equal(t, "Method", pkgres.Body.([]interface{})[3])
 	assert.Equal(t, "Ljava/lang/String;", pkgres.Body.([]interface{})[4])
 	assert.Equal(t, []interface{}{"a"}, pkgres.Body.([]interface{})[5])
-	assert.Equal(t, map[string]string{"dubbo": "2.0.2", "group": "", "interface": "Service", "path": "path", "timeout": "1000", "version": "2.6"}, pkgres.Body.([]interface{})[6])
+	assert.Equal(t, map[string]string{"dubbo": "2.0.2", "interface": "Service", "path": "path", "timeout": "1000", "version": "2.6"}, pkgres.Body.([]interface{})[6])
 }