diff --git a/tensorflow_privacy/privacy/optimizers/dp_optimizer_vectorized.py b/tensorflow_privacy/privacy/optimizers/dp_optimizer_vectorized.py
index 6a2b257..5edafd4 100644
--- a/tensorflow_privacy/privacy/optimizers/dp_optimizer_vectorized.py
+++ b/tensorflow_privacy/privacy/optimizers/dp_optimizer_vectorized.py
@@ -1,4 +1,4 @@
-# Copyright 2019, The TensorFlow Authors.
+# Copyright 2020, The TensorFlow Authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.