diff --git a/Dockerfile b/Dockerfile
index 2aba5953..22eaa768 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-# Copyright 2017-2020 The Kubernetes Authors.
+# Copyright 2023 The Kubernetes Authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.