diff --git a/nmap-update/default_channel.h b/nmap-update/default_channel.h
index 4527ab49f..71bcfe324 100644
--- a/nmap-update/default_channel.h
+++ b/nmap-update/default_channel.h
@@ -1 +1 @@
-#define DEFAULT_CHANNEL "6.00"
+#define DEFAULT_CHANNEL "6.49"