diff --git a/samples/typescript/openTelemetryTracing.ts b/samples/typescript/openTelemetryTracing.ts
index fc0b50fd2..bb68af87a 100644
--- a/samples/typescript/openTelemetryTracing.ts
+++ b/samples/typescript/openTelemetryTracing.ts
@@ -1,4 +1,4 @@
-// Copyright 2020-2022 Google LLC
+// Copyright 2020-2023 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/src/telemetry-tracing.ts b/src/telemetry-tracing.ts
index e9088a210..1d2e54f91 100644
--- a/src/telemetry-tracing.ts
+++ b/src/telemetry-tracing.ts
@@ -1,5 +1,5 @@
 /*!
- * Copyright 2020 Google LLC
+ * Copyright 2020-2023 Google LLC
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
diff --git a/src/wrapping-emitter.ts b/src/wrapping-emitter.ts
index 2bbd8c370..de3fbfe60 100644
--- a/src/wrapping-emitter.ts
+++ b/src/wrapping-emitter.ts
@@ -1,4 +1,4 @@
-// Copyright 2022 Google LLC
+// Copyright 2022-2023 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/test/telemetry-tracing.ts b/test/telemetry-tracing.ts
index 8ce9a203d..de450d580 100644
--- a/test/telemetry-tracing.ts
+++ b/test/telemetry-tracing.ts
@@ -1,5 +1,5 @@
 /*!
- * Copyright 2020 Google LLC
+ * Copyright 2020-2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.