diff --git a/src/04.08. Update The Base System.pod b/src/04.08. Update The Base System.pod
index ac779a2..7a9d860 100644
--- a/src/04.08. Update The Base System.pod	
+++ b/src/04.08. Update The Base System.pod	
@@ -26,6 +26,14 @@ updates:
 
     (chrooted) # rejmerge
 
+And it's a good idea to check which packages need to be rebuilt:
+
+    (chrooted) # revdep
+
+If B<revdep(1)> showed anything rebuild them as follows:
+
+    (chrooted) # pkgman update -fr --depsort `revdep`
+
 =cut
 
 # vim: sw=4 ts=4 sts=4 et cc=72 tw=70