diff --git a/readme.txt b/readme.txt
index 15f5472c..7848c4a4 100644
--- a/readme.txt
+++ b/readme.txt
@@ -82,7 +82,7 @@ Legal Stuff:
 	  (zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format).
 
  
-  Copyright (c) 1993-2013 Robert McNeel & Associates. All Rights Reserved.
+  Copyright (c) 1993-2018 Robert McNeel & Associates. All Rights Reserved.
   Rhinoceros is a registered trademark of Robert McNeel & Associates.
 
   THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT EXPRESS OR IMPLIED