diff --git a/src/core/surface/version.c b/src/core/surface/version.c
index 262a13f184d86e3b253c362a53f0ec2f00d4cca6..aada18e07e490db6f6b2b387f6558eb0c706c1c2 100644
--- a/src/core/surface/version.c
+++ b/src/core/surface/version.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015-2016, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/csharp/Grpc.Core/VersionInfo.cs b/src/csharp/Grpc.Core/VersionInfo.cs
index 65813909deef87d48d33ee397981fd6fa0368ea3..4c6d50356c6d4b89eb5bf3afc0eb14b827d5a692 100644
--- a/src/csharp/Grpc.Core/VersionInfo.cs
+++ b/src/csharp/Grpc.Core/VersionInfo.cs
@@ -1,6 +1,6 @@
 #region Copyright notice and license
 
-// Copyright 2015-2016, Google Inc.
+// Copyright 2015, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without