Index: tests/serialize.test
===================================================================
diff -u -N -re5a313d7150ca82b5e8ac1b0953ee90d18cb4dd2 -r8e2e356e9bcef39f43dfe3690b82d9586c7adc72
--- tests/serialize.test	(.../serialize.test)	(revision e5a313d7150ca82b5e8ac1b0953ee90d18cb4dd2)
+++ tests/serialize.test	(.../serialize.test)	(revision 8e2e356e9bcef39f43dfe3690b82d9586c7adc72)
@@ -1,5 +1,7 @@
 # -*- Tcl -*-
 
+package prefer latest
+
 package req nx::test
 package req nx::serializer