diff --git a/libraries/persistent_store/src/lib.rs b/libraries/persistent_store/src/lib.rs
index 05425c3..846f956 100644
--- a/libraries/persistent_store/src/lib.rs
+++ b/libraries/persistent_store/src/lib.rs
@@ -1,4 +1,4 @@
-// Copyright 2019 Google LLC
+// Copyright 2019-2020 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/libraries/persistent_store/src/storage.rs b/libraries/persistent_store/src/storage.rs
index f5ba7e9..55df177 100644
--- a/libraries/persistent_store/src/storage.rs
+++ b/libraries/persistent_store/src/storage.rs
@@ -1,4 +1,4 @@
-// Copyright 2019 Google LLC
+// Copyright 2019-2020 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.