Update copyright dates

1 files changed, 1 insertions, 1 deletions

diff --git a/expr.h b/expr.h
index 9644a0d..b7c5c15 100644
--- a/expr.h
+++ b/expr.h
@@ -1,6 +1,6 @@
 /****************************************************************************
  * bfs                                                                      *
- * Copyright (C) 2015-2017 Tavian Barnes <tavianator@tavianator.com>        *
+ * Copyright (C) 2015-2018 Tavian Barnes <tavianator@tavianator.com>        *
  *                                                                          *
  * Permission to use, copy, modify, and/or distribute this software for any *
  * purpose with or without fee is hereby granted.                           *