diff --git a/go.mod b/go.mod
index 21ca5e8..5a7525c 100644
--- a/go.mod
+++ b/go.mod
@@ -4,7 +4,6 @@ go 1.20
 
 require (
 	github.com/opentracing/opentracing-go v1.2.0
+	go.opentelemetry.io/otel v1.24.0
 	go.unistack.org/micro/v3 v3.10.43
 )
-
-require github.com/stretchr/testify v1.8.1 // indirect
diff --git a/go.sum b/go.sum
index ae23ffc..c8f3213 100644
--- a/go.sum
+++ b/go.sum
@@ -1,21 +1,15 @@
 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/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/opentracing/opentracing-go v1.2.0 h1:uEJPy/1a5RIPAJ0Ov+OIO8OxWu77jEv+1B0VhjKrZUs=
 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/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=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
-github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk=
-github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
+github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
+go.opentelemetry.io/otel v1.24.0 h1:0LAOdjNmQeSTzGBzduGe/rU4tZhMwL5rWgtp9Ku5Jfo=
+go.opentelemetry.io/otel v1.24.0/go.mod h1:W7b9Ozg4nkF5tWI5zsXkaKKDjdVjpD4oAt9Qi/MArHo=
 go.unistack.org/micro/v3 v3.10.43 h1:GjUgu1lSKrhIov67jZQg6hUVUw0xZ6+ub8s6JRu6uj4=
 go.unistack.org/micro/v3 v3.10.43/go.mod h1:CSmEf5ddmft94MyKHnUSMM0W5dpmmTVbgImbgQWV5Ak=
-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=
-gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/opentracing.go b/opentracing.go
index 10f45fd..4c47ae7 100644
--- a/opentracing.go
+++ b/opentracing.go
@@ -7,6 +7,7 @@ import (
 
 	ot "github.com/opentracing/opentracing-go"
 	otlog "github.com/opentracing/opentracing-go/log"
+	"go.opentelemetry.io/otel/attribute"
 	"go.unistack.org/micro/v3/metadata"
 	"go.unistack.org/micro/v3/tracer"
 	rutil "go.unistack.org/micro/v3/util/reflect"
@@ -162,16 +163,17 @@ func (os *otSpan) Kind() tracer.SpanKind {
 }
 
 func (os *otSpan) AddLabels(labels ...interface{}) {
-	if len(labels)%2 != 0 {
-		labels = labels[:len(labels)-1]
-	}
-	for idx := 0; idx < len(labels); idx += 2 {
-		k, kok := labels[idx].(string)
-		if !kok {
-			continue
+	l := len(labels)
+	for idx := 0; idx < len(labels); idx++ {
+		switch lt := labels[idx].(type) {
+		case attribute.KeyValue:
+			os.span.SetTag(string(lt.Key), lt.Value.AsInterface())
+		case string:
+			if l < idx+1 {
+				os.span.SetTag(lt, labels[idx+1])
+				idx++
+			}
 		}
-		v := labels[idx+1]
-		os.span.SetTag(k, v)
 	}
 }