diff --git a/src/bench/bench.cpp b/src/bench/bench.cpp
--- a/src/bench/bench.cpp
+++ b/src/bench/bench.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2015-2016 The Bitcoin Core developers
+// Copyright (c) 2015-2019 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/bench/bench_bitcoin.cpp b/src/bench/bench_bitcoin.cpp
--- a/src/bench/bench_bitcoin.cpp
+++ b/src/bench/bench_bitcoin.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2015-2016 The Bitcoin Core developers
+// Copyright (c) 2015-2019 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/bench/duplicate_inputs.cpp b/src/bench/duplicate_inputs.cpp
--- a/src/bench/duplicate_inputs.cpp
+++ b/src/bench/duplicate_inputs.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2011-2018 The Bitcoin Core developers
+// Copyright (c) 2011-2019 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.