diff --git a/go.mod b/go.mod
index 1c1d2ea..b68093e 100644
--- a/go.mod
+++ b/go.mod
@@ -5,10 +5,17 @@ go 1.20
 require (
 	github.com/instana/go-sensor v1.60.0
 	github.com/opentracing/opentracing-go v1.2.0
-	go.unistack.org/micro/v3 v3.10.50
+	go.unistack.org/micro/v3 v3.10.85
 )
 
 require (
+	dario.cat/mergo v1.0.0 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/google/uuid v1.3.0 // indirect
 	github.com/looplab/fsm v1.0.1 // indirect
+	github.com/silas/dag v0.0.0-20220518035006-a7e85ada93c5 // indirect
 	github.com/stretchr/testify v1.8.3 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20230526203410-71b5a4ffd15e // indirect
+	google.golang.org/grpc v1.57.0 // indirect
+	google.golang.org/protobuf v1.31.0 // indirect
 )
diff --git a/go.sum b/go.sum
index fc1aad0..b7c5e33 100644
--- a/go.sum
+++ b/go.sum
@@ -1,6 +1,14 @@
+dario.cat/mergo v1.0.0 h1:AGCNq9Evsj31mOgNPcLyXc+4PNABt905YmuqPYYpBWk=
+dario.cat/mergo v1.0.0/go.mod h1:uNxQE+84aUszobStD9th8a29P2fMDhsBdgRYvZOxGmk=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
+github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg=
+github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
+github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
+github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/instana/go-sensor v1.60.0 h1:lsAiwmK5AtNQ9gLHPLvZt0aLddZxM4R0oakkO7rXO2U=
 github.com/instana/go-sensor v1.60.0/go.mod h1:Ks06EG9Da5O3hbdJiHIePG/vNmToovkaJjMlUBd70Yc=
 github.com/looplab/fsm v1.0.1 h1:OEW0ORrIx095N/6lgoGkFkotqH6s7vaFPsgjLAaF5QU=
@@ -9,6 +17,8 @@ github.com/opentracing/opentracing-go v1.2.0 h1:uEJPy/1a5RIPAJ0Ov+OIO8OxWu77jEv+
 github.com/opentracing/opentracing-go v1.2.0/go.mod h1:GxEUsuufX4nBwe+T+Wl9TAgYrxe9dPLANfrWvHYVTgc=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/silas/dag v0.0.0-20220518035006-a7e85ada93c5 h1:G/FZtUu7a6NTWl3KUHMV9jkLAh/Rvtf03NWMHaEDl+E=
+github.com/silas/dag v0.0.0-20220518035006-a7e85ada93c5/go.mod h1:7RTUFBdIRC9nZ7/3RyRNH1bdqIShrDejd1YbLwgPS+I=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
@@ -20,6 +30,17 @@ github.com/stretchr/testify v1.8.3 h1:RP3t2pwF7cMEbC1dqtB6poj3niw/9gnV4Cjg5oW5gt
 github.com/stretchr/testify v1.8.3/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 go.unistack.org/micro/v3 v3.10.50 h1:U0aYtKHrpGHFDYdTRgsIYxIejU4HKDKbLHcLZngvDIs=
 go.unistack.org/micro/v3 v3.10.50/go.mod h1:erMgt3Bl7vQQ0e9UpQyR5NlLiZ9pKeEJ9+1tfYFaqUg=
+go.unistack.org/micro/v3 v3.10.85 h1:yKM5eqenL6x2eRbdsx+IEwtpx/RE7+quxjHQdyLE2PI=
+go.unistack.org/micro/v3 v3.10.85/go.mod h1:erMgt3Bl7vQQ0e9UpQyR5NlLiZ9pKeEJ9+1tfYFaqUg=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20230526203410-71b5a4ffd15e h1:NumxXLPfHSndr3wBBdeKiVHjGVFzi9RX2HwwQke94iY=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20230526203410-71b5a4ffd15e/go.mod h1:66JfowdXAEgad5O9NnYcsNPLCPZJD++2L9X0PCMODrA=
+google.golang.org/grpc v1.57.0 h1:kfzNeI/klCGD2YPMUlaGNT3pxvYfga7smW3Vth8Zsiw=
+google.golang.org/grpc v1.57.0/go.mod h1:Sd+9RMTACXwmub0zcNY2c4arhtrbBYD1AUHI/dt16Mo=
+google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
+google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
+google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
+google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
diff --git a/instana.go b/instana.go
index b2c7b18..f6bb14e 100644
--- a/instana.go
+++ b/instana.go
@@ -11,6 +11,7 @@ import (
 	"go.unistack.org/micro/v3/metadata"
 	"go.unistack.org/micro/v3/tracer"
 	rutil "go.unistack.org/micro/v3/util/reflect"
+	"go.unistack.org/micro/v3/util/sort"
 )
 
 var _ tracer.Tracer = (*Tracer)(nil)
@@ -142,7 +143,7 @@ func (os *otSpan) Finish(opts ...tracer.SpanOption) {
 	if len(os.opts.Labels)%2 != 0 {
 		os.opts.Labels = os.opts.Labels[:len(os.opts.Labels)-1]
 	}
-	os.opts.Labels = tracer.UniqLabels(os.opts.Labels)
+	os.opts.Labels = sort.Uniq(os.opts.Labels)
 	for idx := 0; idx < len(os.opts.Labels); idx += 2 {
 		switch os.opts.Labels[idx] {
 		case "err":