diff --git a/main.c b/main.c
index 9a12a70..33292a8 100644
--- a/main.c
+++ b/main.c
@@ -71,7 +71,7 @@ void usage(FILE *fp)
 			"and MAC are set to the device IP address, TFTP port, subnet\n"
 			"mask and MAC address, respectively.\n"
 			"\n"
-			"nmrpflash %s, Copyright (C) 2016-2022 Joseph C. Lehner\n"
+			"nmrpflash %s, Copyright (C) 2016-2023 Joseph C. Lehner\n"
 			"nmrpflash is free software, licensed under the GNU GPLv3.\n"
 			"Source code at https://github.com/jclehner/nmrpflash\n"
 			"\n"