diff --git a/todo/nmap.txt b/todo/nmap.txt
index 0abf95b08..fdfb1ff9b 100644
--- a/todo/nmap.txt
+++ b/todo/nmap.txt
@@ -1,6 +1,12 @@
 TODO $Id: TODO 11866 2009-01-24 23:10:05Z fyodor $ -*-text-*-
 
 
+o We should probably update our included libpcap.  We currently
+  include version 1.2.1 (we upgraded to that in April 2012) while the
+  latest version on tcpdump.org is 1.5.2.  We make minor changes to
+  libpcap that we ship, and instructions for upgrading are in
+  libpcap/NMAP_MODIFICATIONS.
+
 o Fix a segmentation fault in Ncat when scanned with the SSL NSE
   scripts.  I was able to reproduce this on 2013-09-27 with latest SVN
   by running: