-It requires headers and libraries for Boost, gtkmm and Mozilla. I
-have developed and tested it with Boost 1.32, gtkmm 2.2.12 and Mozilla
-1.7.8 but it may well work with earlier or later versions of these.
+It requires headers and libraries for Boost, gtkmm, Mozilla and expat.
+I have developed and tested it with Boost 1.32, gtkmm 2.2.12, Mozilla
+1.7.8 and expat 1.95.8 but it may well work with earlier or later
+versions of these.