Index: library/serialize/serializer.tcl
===================================================================
diff -u -rce99d2e545ab2b5677045db1184e80f6bded0dbe -r73f1e56ae78d53bfd1f59c8bbb46f11a47555a4a
--- library/serialize/serializer.tcl	(.../serializer.tcl)	(revision ce99d2e545ab2b5677045db1184e80f6bded0dbe)
+++ library/serialize/serializer.tcl	(.../serializer.tcl)	(revision 73f1e56ae78d53bfd1f59c8bbb46f11a47555a4a)
@@ -1,6 +1,6 @@
 package require nx
 
-package require XOTcl 2.1
+package require XOTcl 2.2
 package provide nx::serializer 2.2
 
 # For the time being, we require classical XOTcl.