diff --git a/src/@dates/private/comparison_arg_checks.m b/src/@dates/private/comparison_arg_checks.m
index c57ea5d718d24c0c467c208008fb07a59d17c801..0396a72b04171acde589b239bcc4c3b56e64df09 100644
--- a/src/@dates/private/comparison_arg_checks.m
+++ b/src/@dates/private/comparison_arg_checks.m
@@ -9,7 +9,7 @@ function [o, p] = comparison_arg_checks(varargin) % --*-- Unitary tests --*--
 % - o [dates] dates object with n or 1 elements.
 % - p [dates] dates object with n or 1 elements.
 
-% Copyright (C) 2014-2017 Dynare Team
+% Copyright (C) 2014-2019 Dynare Team
 %
 % This code is free software: you can redistribute it and/or modify
 % it under the terms of the GNU General Public License as published by
diff --git a/src/@dates/private/dates4display.m b/src/@dates/private/dates4display.m
index 58163731122139769c1194e2e4c02156b82c23a9..81f589bb42549a04d12fbd6f7daea033700bda28 100644
--- a/src/@dates/private/dates4display.m
+++ b/src/@dates/private/dates4display.m
@@ -10,7 +10,7 @@ function str = dates4display(o, name, max_number_of_elements) % --*-- Unitary te
 % OUTPUTS
 % - str  [string] Representation of the dates object as a string.
 
-% Copyright (C) 2014-2017 Dynare Team
+% Copyright (C) 2014-2019 Dynare Team
 %
 % This code is free software: you can redistribute it and/or modify
 % it under the terms of the GNU General Public License as published by
diff --git a/src/@dates/private/greaterorequal.m b/src/@dates/private/greaterorequal.m
index 23775c8370a09e503f9513e54b72777b991b647c..06137c6e7de83d0914523a4fdaea6388815f0aee 100644
--- a/src/@dates/private/greaterorequal.m
+++ b/src/@dates/private/greaterorequal.m
@@ -1,6 +1,6 @@
 function c = greaterorequal(a,b) % --*-- Unitary tests --*--
 
-% Copyright (C) 2013-2017 Dynare Team
+% Copyright (C) 2013-2019 Dynare Team
 %
 % This code is free software: you can redistribute it and/or modify
 % it under the terms of the GNU General Public License as published by
diff --git a/src/@dates/private/greaterthan.m b/src/@dates/private/greaterthan.m
index 80c7dbed2c4880180f5fa658459ca8280b3279c5..36e0e9589f8c79982ed8716a4e29e1f63865edff 100644
--- a/src/@dates/private/greaterthan.m
+++ b/src/@dates/private/greaterthan.m
@@ -1,6 +1,6 @@
 function c = greaterthan(a,b) % --*-- Unitary tests --*--
 
-% Copyright (C) 2013-2015 Dynare Team
+% Copyright (C) 2013-2019 Dynare Team
 %
 % This code is free software: you can redistribute it and/or modify
 % it under the terms of the GNU General Public License as published by
diff --git a/src/@dates/private/lessorequal.m b/src/@dates/private/lessorequal.m
index 6c256688f66fbc82b8ed7f13f6f792dd8219648d..8be912905eacc3d2c21e7b03ec42bc47150e47fe 100644
--- a/src/@dates/private/lessorequal.m
+++ b/src/@dates/private/lessorequal.m
@@ -1,6 +1,6 @@
 function c = lessorequal(a, b) % --*-- Unitary tests --*--
 
-% Copyright (C) 2013-2015 Dynare Team
+% Copyright (C) 2013-2019 Dynare Team
 %
 % This code is free software: you can redistribute it and/or modify
 % it under the terms of the GNU General Public License as published by
diff --git a/src/@dates/private/lessthan.m b/src/@dates/private/lessthan.m
index 2fadb74c5d710ce4ee80cd69c8a6f82b3c2cbb73..2e76ea67b514e8ad98d91cf959290d21f915fce4 100644
--- a/src/@dates/private/lessthan.m
+++ b/src/@dates/private/lessthan.m
@@ -1,6 +1,6 @@
 function c = lessthan(a,b) % --*-- Unitary tests --*--
 
-% Copyright (C) 2013-2015 Dynare Team
+% Copyright (C) 2013-2019 Dynare Team
 %
 % This code is free software: you can redistribute it and/or modify
 % it under the terms of the GNU General Public License as published by