diff --git a/api/annotations.pb.go b/api/annotations.pb.go
index 5cdc610..08de233 100644
--- a/api/annotations.pb.go
+++ b/api/annotations.pb.go
@@ -15,7 +15,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.21.9
+// 	protoc        v3.21.12
 // source: api/annotations.proto
 
 package api
diff --git a/api/client.pb.go b/api/client.pb.go
index 3ae50b5..ce67d96 100644
--- a/api/client.pb.go
+++ b/api/client.pb.go
@@ -15,7 +15,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.21.9
+// 	protoc        v3.21.12
 // source: api/client.proto
 
 package api
diff --git a/api/field_behavior.pb.go b/api/field_behavior.pb.go
index fe332cb..04fa9f5 100644
--- a/api/field_behavior.pb.go
+++ b/api/field_behavior.pb.go
@@ -15,7 +15,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.21.9
+// 	protoc        v3.21.12
 // source: api/field_behavior.proto
 
 package api
diff --git a/api/http.pb.go b/api/http.pb.go
index 2c4bdc7..4ac8924 100644
--- a/api/http.pb.go
+++ b/api/http.pb.go
@@ -15,7 +15,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.21.9
+// 	protoc        v3.21.12
 // source: api/http.proto
 
 package api
diff --git a/api/httpbody.pb.go b/api/httpbody.pb.go
index 7324f4d..1c819f0 100644
--- a/api/httpbody.pb.go
+++ b/api/httpbody.pb.go
@@ -15,7 +15,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.21.9
+// 	protoc        v3.21.12
 // source: api/httpbody.proto
 
 package api
diff --git a/api/micro.pb.go b/api/micro.pb.go
index c680072..c61bc3f 100644
--- a/api/micro.pb.go
+++ b/api/micro.pb.go
@@ -15,7 +15,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.21.9
+// 	protoc        v3.21.12
 // source: api/micro.proto
 
 package api
diff --git a/api/micro.proto b/api/micro.proto
index d81411d..1eb98f2 100644
--- a/api/micro.proto
+++ b/api/micro.proto
@@ -44,3 +44,4 @@ message MicroService {
   // ClientWrappers contains wrappers for client
   repeated string client_wrappers = 2;
 }
+
diff --git a/codec/frame.pb.go b/codec/frame.pb.go
index 923af19..826d244 100644
--- a/codec/frame.pb.go
+++ b/codec/frame.pb.go
@@ -15,7 +15,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.21.9
+// 	protoc        v3.21.12
 // source: codec/frame.proto
 
 package codec
diff --git a/errors/errors.pb.go b/errors/errors.pb.go
index f1d78ff..6528f04 100644
--- a/errors/errors.pb.go
+++ b/errors/errors.pb.go
@@ -15,7 +15,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.21.9
+// 	protoc        v3.21.12
 // source: errors/errors.proto
 
 package errors
diff --git a/go.mod b/go.mod
index 6aedc11..043c557 100644
--- a/go.mod
+++ b/go.mod
@@ -1,9 +1,11 @@
-module go.unistack.org/micro-proto/v3
+module go.unistack.org/micro-proto/v4
 
-go 1.16
+go 1.19
 
 require (
 	github.com/google/gnostic v0.6.9
 	google.golang.org/protobuf v1.28.1
-	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b
+	gopkg.in/yaml.v3 v3.0.1
 )
+
+require github.com/golang/protobuf v1.5.2 // indirect
diff --git a/go.sum b/go.sum
index 602b758..9631353 100644
--- a/go.sum
+++ b/go.sum
@@ -141,7 +141,7 @@ gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
-gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
diff --git a/openapiv2/annotations.pb.go b/openapiv2/annotations.pb.go
index 1117480..e9e62d9 100644
--- a/openapiv2/annotations.pb.go
+++ b/openapiv2/annotations.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.21.9
+// 	protoc        v3.21.12
 // source: openapiv2/annotations.proto
 
 package openapiv2
diff --git a/openapiv2/openapiv2.pb.go b/openapiv2/openapiv2.pb.go
index 67b01e9..73a21fd 100644
--- a/openapiv2/openapiv2.pb.go
+++ b/openapiv2/openapiv2.pb.go
@@ -17,7 +17,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.21.9
+// 	protoc        v3.21.12
 // source: openapiv2/openapiv2.proto
 
 package openapiv2
diff --git a/openapiv3/annotations.pb.go b/openapiv3/annotations.pb.go
index 237df37..3395556 100644
--- a/openapiv3/annotations.pb.go
+++ b/openapiv3/annotations.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.21.9
+// 	protoc        v3.21.12
 // source: openapiv3/annotations.proto
 
 package openapiv3
diff --git a/openapiv3/openapiv3.pb.go b/openapiv3/openapiv3.pb.go
index e81407c..4ac3e68 100644
--- a/openapiv3/openapiv3.pb.go
+++ b/openapiv3/openapiv3.pb.go
@@ -17,7 +17,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.21.9
+// 	protoc        v3.21.12
 // source: openapiv3/openapiv3.proto
 
 package openapiv3
diff --git a/tag/tag.pb.go b/tag/tag.pb.go
index adbb5fe..ac75468 100644
--- a/tag/tag.pb.go
+++ b/tag/tag.pb.go
@@ -15,7 +15,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.21.9
+// 	protoc        v3.21.12
 // source: tag/tag.proto
 
 package tag