diff --git a/example/aws-elasticbeanstalk/go.mod b/example/aws-elasticbeanstalk/go.mod
index 6d3329b1..c80b6cde 100644
--- a/example/aws-elasticbeanstalk/go.mod
+++ b/example/aws-elasticbeanstalk/go.mod
@@ -5,7 +5,7 @@ go 1.20
 replace github.com/uptrace/uptrace-go => ../..
 
 require (
-	github.com/uptrace/uptrace-go v1.20.3
+	github.com/uptrace/uptrace-go v1.21.0
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.46.1
 	go.opentelemetry.io/otel/trace v1.21.0
 )
diff --git a/example/aws-lambda/function/go.mod b/example/aws-lambda/function/go.mod
index 8a8f45f3..4987ffd0 100644
--- a/example/aws-lambda/function/go.mod
+++ b/example/aws-lambda/function/go.mod
@@ -8,7 +8,7 @@ require (
 	github.com/aws/aws-lambda-go v1.41.0
 	github.com/aws/aws-sdk-go-v2/config v1.25.2
 	github.com/aws/aws-sdk-go-v2/service/s3 v1.42.2
-	github.com/uptrace/uptrace-go v1.20.3
+	github.com/uptrace/uptrace-go v1.21.0
 	go.opentelemetry.io/contrib/instrumentation/github.com/aws/aws-lambda-go/otellambda v0.46.1
 	go.opentelemetry.io/contrib/instrumentation/github.com/aws/aws-sdk-go-v2/otelaws v0.46.1
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.46.1
diff --git a/example/basic/go.mod b/example/basic/go.mod
index bc735f19..86968087 100644
--- a/example/basic/go.mod
+++ b/example/basic/go.mod
@@ -5,7 +5,7 @@ go 1.20
 replace github.com/uptrace/uptrace-go => ../..
 
 require (
-	github.com/uptrace/uptrace-go v1.20.3
+	github.com/uptrace/uptrace-go v1.21.0
 	go.opentelemetry.io/otel v1.21.0
 )
 
diff --git a/example/metrics/go.mod b/example/metrics/go.mod
index 0b4c1f80..fd57e8ff 100644
--- a/example/metrics/go.mod
+++ b/example/metrics/go.mod
@@ -5,7 +5,7 @@ go 1.20
 replace github.com/uptrace/uptrace-go => ../..
 
 require (
-	github.com/uptrace/uptrace-go v1.20.3
+	github.com/uptrace/uptrace-go v1.21.0
 	go.opentelemetry.io/otel v1.21.0
 	go.opentelemetry.io/otel/metric v1.21.0
 )
diff --git a/example/otel-api/go.mod b/example/otel-api/go.mod
index 3eaf3e70..a2df2158 100644
--- a/example/otel-api/go.mod
+++ b/example/otel-api/go.mod
@@ -5,7 +5,7 @@ go 1.20
 replace github.com/uptrace/uptrace-go => ../..
 
 require (
-	github.com/uptrace/uptrace-go v1.20.3
+	github.com/uptrace/uptrace-go v1.21.0
 	go.opentelemetry.io/otel v1.21.0
 	go.opentelemetry.io/otel/trace v1.21.0
 )
diff --git a/example/tutorial/go.mod b/example/tutorial/go.mod
index 687c9e12..a3b7cfe8 100644
--- a/example/tutorial/go.mod
+++ b/example/tutorial/go.mod
@@ -6,7 +6,7 @@ replace github.com/uptrace/uptrace-go => ../..
 
 require (
 	github.com/uptrace/opentelemetry-go-extra/otelzap v0.2.3
-	github.com/uptrace/uptrace-go v1.20.3
+	github.com/uptrace/uptrace-go v1.21.0
 	go.opentelemetry.io/otel v1.21.0
 	go.uber.org/zap v1.26.0
 )
diff --git a/example/zerolog-vector/go.mod b/example/zerolog-vector/go.mod
index 136beeaf..ad3d488b 100644
--- a/example/zerolog-vector/go.mod
+++ b/example/zerolog-vector/go.mod
@@ -6,7 +6,7 @@ replace github.com/uptrace/uptrace-go => ../..
 
 require (
 	github.com/rs/zerolog v1.31.0
-	github.com/uptrace/uptrace-go v1.20.3
+	github.com/uptrace/uptrace-go v1.21.0
 	go.opentelemetry.io/otel v1.21.0
 	gopkg.in/natefinch/lumberjack.v2 v2.2.1
 )
diff --git a/uptrace/version.go b/uptrace/version.go
index 66db23a0..dadedef1 100644
--- a/uptrace/version.go
+++ b/uptrace/version.go
@@ -2,5 +2,5 @@ package uptrace
 
 // Version is the current release version.
 func Version() string {
-	return "1.20.0"
+	return "1.21.0"
 }