diff --git a/packages/google-cloud-documentai/.jsdoc.js b/packages/google-cloud-documentai/.jsdoc.js
index c814e25de81..699af1a26f6 100644
--- a/packages/google-cloud-documentai/.jsdoc.js
+++ b/packages/google-cloud-documentai/.jsdoc.js
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -40,7 +40,7 @@ module.exports = {
     includePattern: '\\.js$'
   },
   templates: {
-    copyright: 'Copyright 2023 Google LLC',
+    copyright: 'Copyright 2024 Google LLC',
     includeDate: false,
     sourceFiles: false,
     systemName: '@google-cloud/documentai',
diff --git a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.batch_process_documents.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.batch_process_documents.js
index 657a150340c..cc23b0af424 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.batch_process_documents.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.batch_process_documents.js
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.create_processor.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.create_processor.js
index 870a7de3702..a169483ab62 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.create_processor.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.create_processor.js
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.delete_processor.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.delete_processor.js
index 4ab967cce66..2f0a671a87c 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.delete_processor.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.delete_processor.js
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.delete_processor_version.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.delete_processor_version.js
index 01615c813fe..1572269cac3 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.delete_processor_version.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.delete_processor_version.js
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.deploy_processor_version.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.deploy_processor_version.js
index 0161f7ba658..043a75f2055 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.deploy_processor_version.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.deploy_processor_version.js
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.disable_processor.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.disable_processor.js
index 0f1b1d1d141..0c6127fe31f 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.disable_processor.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.disable_processor.js
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.enable_processor.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.enable_processor.js
index 44de97ce4ee..e3c556f638e 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.enable_processor.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.enable_processor.js
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.evaluate_processor_version.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.evaluate_processor_version.js
index e0de854f1ba..b6e9f32dacc 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.evaluate_processor_version.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.evaluate_processor_version.js
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.fetch_processor_types.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.fetch_processor_types.js
index 756f23fc87b..2f42d1488e0 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.fetch_processor_types.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.fetch_processor_types.js
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.get_evaluation.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.get_evaluation.js
index 285110768af..31524bb4699 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.get_evaluation.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.get_evaluation.js
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.get_processor.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.get_processor.js
index e4161c67367..beb417b01cf 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.get_processor.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.get_processor.js
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.get_processor_type.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.get_processor_type.js
index 5a74600870f..1d2f14f8f58 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.get_processor_type.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.get_processor_type.js
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.get_processor_version.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.get_processor_version.js
index 9c6d7069f17..11d9e3c58e3 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.get_processor_version.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.get_processor_version.js
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.list_evaluations.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.list_evaluations.js
index 3fe6b477331..934337022e3 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.list_evaluations.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.list_evaluations.js
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.list_processor_types.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.list_processor_types.js
index 1cfd4ad4a06..35491a93b4a 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.list_processor_types.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.list_processor_types.js
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.list_processor_versions.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.list_processor_versions.js
index ac8136c11a3..cfcf4c207ee 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.list_processor_versions.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.list_processor_versions.js
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.list_processors.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.list_processors.js
index afb3bfd0da0..93b64f2619c 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.list_processors.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.list_processors.js
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.process_document.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.process_document.js
index a6c6c62473f..bbb4b44373b 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.process_document.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.process_document.js
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.review_document.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.review_document.js
index 454e629846f..8d659770f54 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.review_document.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.review_document.js
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.set_default_processor_version.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.set_default_processor_version.js
index 88c73f43c32..9262e930732 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.set_default_processor_version.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.set_default_processor_version.js
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.train_processor_version.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.train_processor_version.js
index c80bd2d8709..4d95870ce72 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.train_processor_version.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.train_processor_version.js
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.undeploy_processor_version.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.undeploy_processor_version.js
index ca9483b9cb9..44325ca7d74 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.undeploy_processor_version.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.undeploy_processor_version.js
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/src/v1/document_processor_service_client.ts b/packages/google-cloud-documentai/src/v1/document_processor_service_client.ts
index fb60e64586b..bb0ba40320e 100644
--- a/packages/google-cloud-documentai/src/v1/document_processor_service_client.ts
+++ b/packages/google-cloud-documentai/src/v1/document_processor_service_client.ts
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/src/v1/index.ts b/packages/google-cloud-documentai/src/v1/index.ts
index 4b4b7136177..240df031fb0 100644
--- a/packages/google-cloud-documentai/src/v1/index.ts
+++ b/packages/google-cloud-documentai/src/v1/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/system-test/fixtures/sample/src/index.js b/packages/google-cloud-documentai/system-test/fixtures/sample/src/index.js
index 07b74dbb433..72e5fc320c3 100644
--- a/packages/google-cloud-documentai/system-test/fixtures/sample/src/index.js
+++ b/packages/google-cloud-documentai/system-test/fixtures/sample/src/index.js
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/system-test/fixtures/sample/src/index.ts b/packages/google-cloud-documentai/system-test/fixtures/sample/src/index.ts
index ec76bbe24ce..fa69da9191f 100644
--- a/packages/google-cloud-documentai/system-test/fixtures/sample/src/index.ts
+++ b/packages/google-cloud-documentai/system-test/fixtures/sample/src/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/system-test/install.ts b/packages/google-cloud-documentai/system-test/install.ts
index f61fe236476..83b83f332c3 100644
--- a/packages/google-cloud-documentai/system-test/install.ts
+++ b/packages/google-cloud-documentai/system-test/install.ts
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 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/packages/google-cloud-documentai/test/gapic_document_processor_service_v1.ts b/packages/google-cloud-documentai/test/gapic_document_processor_service_v1.ts
index 8834c1909d2..c8d0cc9442c 100644
--- a/packages/google-cloud-documentai/test/gapic_document_processor_service_v1.ts
+++ b/packages/google-cloud-documentai/test/gapic_document_processor_service_v1.ts
@@ -1,4 +1,4 @@
-// Copyright 2023 Google LLC
+// Copyright 2024 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.