diff --git a/common/manhole.py b/common/manhole.py
index 58fc51f..c00c900 100644
--- a/common/manhole.py
+++ b/common/manhole.py
@@ -1,5 +1,5 @@
 #
-# Copyright 2016 the original author or authors.
+# Copyright 2017 the original author or authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.