diff --git a/go.mod b/go.mod
index 49151e1..6ea4d69 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,6 @@ module github.com/nspcc-dev/neofs-api-go
 go 1.14
 
 require (
-	github.com/alecthomas/participle v0.6.0
 	github.com/golang/protobuf v1.4.3
 	github.com/google/uuid v1.1.1
 	github.com/mr-tron/base58 v1.1.2
diff --git a/go.sum b/go.sum
index 612803a..163f26c 100644
--- a/go.sum
+++ b/go.sum
@@ -11,9 +11,6 @@ github.com/Workiva/go-datastructures v1.0.50/go.mod h1:Z+F2Rca0qCsVYDS8z7bAGm8f3
 github.com/abiosoft/ishell v2.0.0+incompatible/go.mod h1:HQR9AqF2R3P4XXpMpI0NAzgHf/aS6+zVXRj14cVk9qg=
 github.com/abiosoft/readline v0.0.0-20180607040430-155bce2042db/go.mod h1:rB3B4rKii8V21ydCbIzH5hZiCQE7f5E9SzUb/ZZx530=
 github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII=
-github.com/alecthomas/participle v0.6.0 h1:Pvo8XUCQKgIywVjz/+Ci3IsjGg+g/TdKkMcfgghKCEw=
-github.com/alecthomas/participle v0.6.0/go.mod h1:HfdmEuwvr12HXQN44HPWXR0lHmVolVYe4dyL6lQ3duY=
-github.com/alecthomas/repr v0.0.0-20181024024818-d37bc2a10ba1/go.mod h1:xTS7Pm1pD1mvyM075QCDSRqH6qRLXylzS24ZTpRiSzQ=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 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=
diff --git a/util/proto/test/test.pb.go b/util/proto/test/test.pb.go
index 91c3f8b..f581442 100644
Binary files a/util/proto/test/test.pb.go and b/util/proto/test/test.pb.go differ
diff --git a/v2/accounting/grpc/service.pb.go b/v2/accounting/grpc/service.pb.go
index 2ef4b19..2f29d12 100644
Binary files a/v2/accounting/grpc/service.pb.go and b/v2/accounting/grpc/service.pb.go differ
diff --git a/v2/accounting/grpc/types.pb.go b/v2/accounting/grpc/types.pb.go
index 13c3bf9..dd62f96 100644
Binary files a/v2/accounting/grpc/types.pb.go and b/v2/accounting/grpc/types.pb.go differ
diff --git a/v2/acl/grpc/types.pb.go b/v2/acl/grpc/types.pb.go
index 2e9656b..e1805a3 100644
Binary files a/v2/acl/grpc/types.pb.go and b/v2/acl/grpc/types.pb.go differ
diff --git a/v2/container/grpc/service.pb.go b/v2/container/grpc/service.pb.go
index 6edd4ce..68d8392 100644
Binary files a/v2/container/grpc/service.pb.go and b/v2/container/grpc/service.pb.go differ
diff --git a/v2/container/grpc/types.pb.go b/v2/container/grpc/types.pb.go
index 5103e7d..f5232e5 100644
Binary files a/v2/container/grpc/types.pb.go and b/v2/container/grpc/types.pb.go differ
diff --git a/v2/netmap/grpc/service.pb.go b/v2/netmap/grpc/service.pb.go
index b30be26..721f282 100644
Binary files a/v2/netmap/grpc/service.pb.go and b/v2/netmap/grpc/service.pb.go differ
diff --git a/v2/netmap/grpc/types.pb.go b/v2/netmap/grpc/types.pb.go
index 9bc0e1d..b7347eb 100644
Binary files a/v2/netmap/grpc/types.pb.go and b/v2/netmap/grpc/types.pb.go differ
diff --git a/v2/object/grpc/service.pb.go b/v2/object/grpc/service.pb.go
index 3a49b0d..e35c1d0 100644
Binary files a/v2/object/grpc/service.pb.go and b/v2/object/grpc/service.pb.go differ
diff --git a/v2/object/grpc/types.pb.go b/v2/object/grpc/types.pb.go
index fd62c34..0498da0 100644
Binary files a/v2/object/grpc/types.pb.go and b/v2/object/grpc/types.pb.go differ
diff --git a/v2/refs/grpc/types.pb.go b/v2/refs/grpc/types.pb.go
index 2d4be15..c9994bd 100644
Binary files a/v2/refs/grpc/types.pb.go and b/v2/refs/grpc/types.pb.go differ
diff --git a/v2/session/grpc/service.pb.go b/v2/session/grpc/service.pb.go
index 19f9e62..712500e 100644
Binary files a/v2/session/grpc/service.pb.go and b/v2/session/grpc/service.pb.go differ
diff --git a/v2/session/grpc/types.pb.go b/v2/session/grpc/types.pb.go
index ac38c54..7140ceb 100644
Binary files a/v2/session/grpc/types.pb.go and b/v2/session/grpc/types.pb.go differ
diff --git a/v2/storagegroup/grpc/types.pb.go b/v2/storagegroup/grpc/types.pb.go
index 5b00a18..96e9d87 100644
Binary files a/v2/storagegroup/grpc/types.pb.go and b/v2/storagegroup/grpc/types.pb.go differ