diff --git a/COPYING b/COPYING
index 72e1b96..2fc6685 100644
--- a/COPYING
+++ b/COPYING
@@ -1,4 +1,4 @@
-Copyright (c) 2003-2006 Mark Borgerding
+Copyright (c) 2003-2010 Mark Borgerding
 
 All rights reserved.
 
diff --git a/_kiss_fft_guts.h b/_kiss_fft_guts.h
index 957a748..ba66144 100644
--- a/_kiss_fft_guts.h
+++ b/_kiss_fft_guts.h
@@ -1,5 +1,5 @@
 /*
-Copyright (c) 2003-2004, Mark Borgerding
+Copyright (c) 2003-2010, Mark Borgerding
 
 All rights reserved.