diff --git a/example/aws-elasticbeanstalk/go.mod b/example/aws-elasticbeanstalk/go.mod
index 950ca7e7..83afab0f 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 v1.21.0
+	github.com/uptrace/uptrace-go v1.23.1
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.48.0
 	go.opentelemetry.io/otel/trace v1.23.1
 )
diff --git a/example/aws-lambda/function/go.mod b/example/aws-lambda/function/go.mod
index 16b5e51b..0cb3291b 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 v1.46.0
 	github.com/aws/aws-sdk-go-v2/config v1.27.0
 	github.com/aws/aws-sdk-go-v2/service/s3 v1.50.0
-	github.com/uptrace/uptrace-go v1.21.0
+	github.com/uptrace/uptrace-go v1.23.1
 	go.opentelemetry.io/contrib/instrumentation/github.com/aws/aws-lambda-go/otellambda v0.48.0
 	go.opentelemetry.io/contrib/instrumentation/github.com/aws/aws-sdk-go-v2/otelaws v0.48.0
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.48.0
diff --git a/example/basic/go.mod b/example/basic/go.mod
index 0a22750a..5fd4d190 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 v1.21.0
+	github.com/uptrace/uptrace-go v1.23.1
 	go.opentelemetry.io/otel v1.23.1
 )
 
diff --git a/example/metrics/go.mod b/example/metrics/go.mod
index f6c05d92..8c09714b 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 v1.21.0
+	github.com/uptrace/uptrace-go v1.23.1
 	go.opentelemetry.io/otel v1.23.1
 	go.opentelemetry.io/otel/metric v1.23.1
 )
diff --git a/example/otel-api/go.mod b/example/otel-api/go.mod
index 9c4f98e5..290c6a98 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 v1.21.0
+	github.com/uptrace/uptrace-go v1.23.1
 	go.opentelemetry.io/otel v1.23.1
 	go.opentelemetry.io/otel/trace v1.23.1
 )
diff --git a/example/tutorial/go.mod b/example/tutorial/go.mod
index 6c34c5e4..2f1ab2d4 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 v1.21.0
+	github.com/uptrace/uptrace-go v1.23.1
 	go.opentelemetry.io/otel v1.23.1
 	go.uber.org/zap v1.26.0
 )
diff --git a/example/zerolog-vector/go.mod b/example/zerolog-vector/go.mod
index fd542027..7c1483dc 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 v1.32.0
-	github.com/uptrace/uptrace-go v1.21.0
+	github.com/uptrace/uptrace-go v1.23.1
 	go.opentelemetry.io/otel v1.23.1
 	gopkg.in/natefinch/lumberjack.v2 v2.2.1
 )
diff --git a/uptrace/version.go b/uptrace/version.go
index dadedef1..05b7abf9 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 "1.21.0"
+	return "1.23.1"
 }