diff --git a/tinyexpr.c b/tinyexpr.c
index 947bec4..90ed8fc 100755
--- a/tinyexpr.c
+++ b/tinyexpr.c
@@ -1,7 +1,7 @@
 /*
  * TINYEXPR - Tiny recursive descent parser and evaluation engine in C
  *
- * Copyright (c) 2015, 2016 Lewis Van Winkle
+ * Copyright (c) 2015-2018 Lewis Van Winkle
  *
  * http://CodePlea.com
  *
diff --git a/tinyexpr.h b/tinyexpr.h
index 5d0dc0c..8278633 100644
--- a/tinyexpr.h
+++ b/tinyexpr.h
@@ -1,7 +1,7 @@
 /*
  * TINYEXPR - Tiny recursive descent parser and evaluation engine in C
  *
- * Copyright (c) 2015, 2016 Lewis Van Winkle
+ * Copyright (c) 2015-2018 Lewis Van Winkle
  *
  * http://CodePlea.com
  *