diff --git a/stablehlo/reference/Ops.cpp b/stablehlo/reference/Ops.cpp
index 91811ed9e33..477b40ce8a7 100644
--- a/stablehlo/reference/Ops.cpp
+++ b/stablehlo/reference/Ops.cpp
@@ -1,4 +1,4 @@
-/* Copyright 2024 The StableHLO Authors.
+/* Copyright 2023-2024 The StableHLO Authors.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.