diff --git a/PExpr.h b/PExpr.h
index 586509f08..290b0f093 100644
--- a/PExpr.h
+++ b/PExpr.h
@@ -1,7 +1,7 @@
 #ifndef IVL_PExpr_H
 #define IVL_PExpr_H
 /*
- * Copyright (c) 1998-2025 Stephen Williams <steve@icarus.com>
+ * Copyright (c) 1998-2026 Stephen Williams <steve@icarus.com>
  * Copyright CERN 2013 / Stephen Williams (steve@icarus.com)
  *
  *    This source code is free software; you can redistribute it
diff --git a/elaborate.cc b/elaborate.cc
index ab091d170..5216ad7b7 100644
--- a/elaborate.cc
+++ b/elaborate.cc
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1998-2025 Stephen Williams (steve@icarus.com)
+ * Copyright (c) 1998-2026 Stephen Williams (steve@icarus.com)
  * Copyright CERN 2013 / Stephen Williams (steve@icarus.com)
  *
  *    This source code is free software; you can redistribute it
diff --git a/lexor.lex b/lexor.lex
index 8f6c87a4b..f48149b94 100644
--- a/lexor.lex
+++ b/lexor.lex
@@ -4,7 +4,7 @@
 
 %{
 /*
- * Copyright (c) 1998-2025 Stephen Williams (steve@icarus.com)
+ * Copyright (c) 1998-2026 Stephen Williams (steve@icarus.com)
  *
  *    This source code is free software; you can redistribute it
  *    and/or modify it in source code form under the terms of the GNU
diff --git a/vvp/logic.cc b/vvp/logic.cc
index 9b9a83e41..06285c41f 100644
--- a/vvp/logic.cc
+++ b/vvp/logic.cc
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001-2020 Stephen Williams (steve@icarus.com)
+ * Copyright (c) 2001-2026 Stephen Williams (steve@icarus.com)
  *
  *    This source code is free software; you can redistribute it
  *    and/or modify it in source code form under the terms of the GNU