diff --git a/ANNOUNCE b/ANNOUNCE
index 504232e..3e58250 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -1,4 +1,4 @@
-April 13, 2017
+February 15, 2018
 
                   Announcing :  PLY-3.11 (Python Lex-Yacc)
 
diff --git a/README.md b/README.md
index 67398cf..05df32a 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 [![Build Status](https://travis-ci.org/dabeaz/ply.svg?branch=master)](https://travis-ci.org/dabeaz/ply)
 
-Copyright (C) 2001-2017
+Copyright (C) 2001-2018
 David M. Beazley (Dabeaz LLC)
 All rights reserved.
 
diff --git a/ply/lex.py b/ply/lex.py
index a200f93..f95bcdb 100644
--- a/ply/lex.py
+++ b/ply/lex.py
@@ -1,7 +1,7 @@
 # -----------------------------------------------------------------------------
 # ply: lex.py
 #
-# Copyright (C) 2001-2017
+# Copyright (C) 2001-2018
 # David M. Beazley (Dabeaz LLC)
 # All rights reserved.
 #
diff --git a/ply/yacc.py b/ply/yacc.py
index d9692a9..88188a1 100644
--- a/ply/yacc.py
+++ b/ply/yacc.py
@@ -1,7 +1,7 @@
 # -----------------------------------------------------------------------------
 # ply: yacc.py
 #
-# Copyright (C) 2001-2017
+# Copyright (C) 2001-2018
 # David M. Beazley (Dabeaz LLC)
 # All rights reserved.
 #