diff --git a/cpp/platform/impl/windows/condition_variable.cc b/cpp/platform/impl/windows/condition_variable.cc
index 12df2a4d..b3a0dcd1 100644
--- a/cpp/platform/impl/windows/condition_variable.cc
+++ b/cpp/platform/impl/windows/condition_variable.cc
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 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/cpp/platform/impl/windows/condition_variable.h b/cpp/platform/impl/windows/condition_variable.h
index 92a7f4a3..97f9025d 100644
--- a/cpp/platform/impl/windows/condition_variable.h
+++ b/cpp/platform/impl/windows/condition_variable.h
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 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/cpp/platform/impl/windows/condition_variable_test.cc b/cpp/platform/impl/windows/condition_variable_test.cc
index e0a2a4c9..18ffff2a 100644
--- a/cpp/platform/impl/windows/condition_variable_test.cc
+++ b/cpp/platform/impl/windows/condition_variable_test.cc
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2021 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.